Kidneys

These ingredients are often used in alternative medicine to support kidneys.

• acaciaScientific

  Acacia gum has clinical evidence supporting benefit in chronic kidney disease: it increases fecal nitrogen excretion to reduce the renal urea burden, improves serum creatinine and eGFR in CKD patients, and reduces oxidative stress and inflammation that drive renal injury. A 12-month study across 7 Sudanese hospitals (25 g/day, Stage 2–3 CKD) documented attenuation of renal decline.

• activated charcoalScientific

  Oral activated charcoal reduces the load of gut-derived uremic toxins reaching the kidneys by trapping their precursors (notably indole) in the intestinal lumen before they can be absorbed, hepatically converted to indoxyl sulfate, and cleared renally. In CKD, where renal clearance is impaired, AC reduces serum IS accumulation and has shown preservation of residual renal function in RCTs. Animal data confirm reduction of oxidative stress within renal tubular tissue.

• aerva lanataScientific

  Aerva lanata, known as 'Pashanabeda' (stone breaker) in Ayurveda, has centuries of traditional use across South Asia for dissolving kidney and urinary stones, diuresis, and nephroprotection. Multiple preclinical studies demonstrate anti-urolithiatic activity; aqueous extract at 2 g/kg reduced oxalate crystal deposition and normalized renal markers in calcium oxalate urolithic rats. A ScienceDirect study showed protective effects against cisplatin- and gentamicin-induced acute renal failure.

• ajwainScientific

  A human study in 350 urinary stone patients documented significant stone-clearing effects of ajwain preparation. Anticalcifying proteins and diuretic activity contribute to renal mineral balance. These represent direct clinical and mechanistic evidence for renal system effects.

• AKG (alpha-ketoglutarate)Scientific

  Disrupted AKG homeostasis is documented in kidney diseases including diabetic nephropathy and renal ischemia/reperfusion injury. Clinical use of Ca-AKG in hemodialysis patients improved kidney-related parameters: increased plasma arginine, proline, and histidine; reduced inorganic phosphate and urea; and corrected secondary hyperparathyroidism. AKG is transported by renal organic anion transporters.

• ALA (alpha-lipoic acid)Scientific

  ALA has been studied clinically in diabetic nephropathy, where meta-analyses of RCTs show it reduces urinary albumin excretion rate when combined with valsartan. A review in PubMed (2024) identifies ALA as showing clinical promise across multiple kidney disease contexts including AKI, CKD, ESRD, and diabetic nephropathy through antioxidant and anti-inflammatory mechanisms.

• alismaScientific

  Alisma orientale (Ze Xie) has been used in Traditional Chinese Medicine for over 1,000 years as a diuretic and nephroprotective agent. Modern pharmacological studies confirm diuretic, anti-kidney stone, anti-inflammatory, and renal fibrosis-inhibiting effects. A 2018 Frontiers in Pharmacology study demonstrated protective effects in adenine-induced chronic kidney disease rats, reducing serum creatinine, urea, and tubular interstitial fibrosis. It is listed in the Pharmacopoeia of China as a representative traditional herbal diuretic.

• alpinia galangalScientific

  In a diabetic nephropathy rat study, A. galanga extract significantly decreased plasma BUN, urinary albumin, creatinine, and improved antioxidant parameters. These renoprotective effects were statistically significant vs. diabetic controls. Traditional medicine also lists kidney disease among A. galanga's indications.

• apple cider vinegarScientific

  ACV has been studied for renal function in chronic kidney disease patients and for urinary stone prevention. A registered RCT (NCT04073719) is investigating ACV for urinary lithiasis prevention. A published RCT (Farzaneh et al., Journal of Renal Nutrition, 2023) examined ACV's effects on renal function in CKD patients.

• astragalusScientific

  Astragalus (Radix Astragali, Huang Qi) is one of the most widely used TCM herbs for chronic kidney disease. A 2014 Cochrane review of 22 studies (1,323 CKD patients) found promising evidence that astragalus, as adjuvant to conventional therapy, may reduce serum creatinine, decrease proteinuria, and alleviate complications like anemia. A 2024 multi-center RCT in 118 patients with diabetic CKD (stages 2–3) found that add-on astragalus for 48 weeks further stabilized kidney function versus standard care alone.

• bananaScientific

  Banana potassium supports renal function by reducing urinary calcium excretion and kidney stone risk, as supported by a Swedish prospective cohort study (61,000 women). Green banana products have demonstrated renal protective effects in diabetic clinical settings. The kidney-potassium axis is recognized in WHO and clinical nutrition guidelines.

• barrenwortScientific

  Epimedium's TCM classification as a kidney-tonifying herb is complemented by extensive preclinical evidence of icariin's nephroprotective effects across diabetic nephropathy, IgA nephropathy, acute kidney injury, chronic kidney disease, and nephrotic syndrome. Mechanisms include anti-fibrotic, antioxidant (Nrf2), and anti-inflammatory (NF-κB/NLRP3) activity in renal tissue.

• belleric myrobalanScientific

  A 24-week human RCT (BMC Complement Med Ther 2020) demonstrated that T. bellirica aqueous extract (500–1000 mg twice daily) significantly reduced serum uric acid and creatinine while improving eGFR in CKD patients with hyperuricemia. Animal studies additionally confirm nephroprotective effects through antioxidant enhancement. Xanthine oxidase inhibition is the established mechanism.

• benfotiamineScientific

  Benfotiamine has been evaluated in a dedicated double-blind RCT for diabetic nephropathy (n=82, 900 mg/day, 12 weeks), which found no significant reduction in urinary albumin excretion or KIM-1 despite improved thiamine status. Animal models show prevention of AGE-mediated kidney damage. The negative human RCT distinguishes renal effects from the more consistent neuropathy findings.

• berberineScientific

  Berberine has demonstrated renoprotective effects across a range of kidney disorders including diabetic nephropathy, renal fibrosis, and chemotherapy-induced nephrotoxicity in preclinical and some clinical contexts. It reduces renal oxidative stress, inflammation, and fibrosis via antioxidant and anti-inflammatory mechanisms.

• betaineScientific

  Betaine metabolism occurs primarily in the liver and kidneys via the BHMT enzyme. The kidneys contribute to homocysteine remethylation and betaine catabolism. Animal studies demonstrate betaine protects renal tissue from oxidative and inflammatory injury. Betaine is used clinically in homocystinuria, which damages renal vasculature when untreated, and renoprotective effects of betaine have been documented in cisplatin-induced nephrotoxicity animal models.

• bicarbonateScientific

  The kidneys are the primary target organ for oral sodium bicarbonate supplementation in CKD with metabolic acidosis. Multiple RCTs and meta-analyses demonstrate that correcting metabolic acidosis with sodium bicarbonate slows eGFR decline. KDIGO 2024 guidelines recommend its use when serum bicarbonate falls below 22 mmol/L. It also alkalinizes urine, relevant to uric acid stone management.

• black cuminScientific

  Clinical trials and the 2025 meta-analysis of 82 RCTs confirm N. sativa significantly reduces creatinine and urea levels. RCTs demonstrate protective effects in diabetic nephropathy with reduced proteinuria. N. sativa is used in Iranian traditional medicine specifically for renal disorders.

• boerhavia diffusaScientific

  Boerhavia diffusa (Punarnava) has centuries of documented Ayurvedic use for kidney disorders, diuresis, and nephroprotection. Multiple preclinical studies confirm nephroprotective activity: aqueous extracts normalized elevated BUN, serum creatinine, and uric acid in cisplatin-, gentamicin-, and diclofenac-induced nephrotoxicity models. A 2023 peer-reviewed review in Research Journal of Pharmacy and Technology confirmed nephroprotective effects demonstrated in in vitro, in vivo, and some clinical studies.

• boronScientific

  Boron is predominantly excreted by the kidneys, and urinary boron closely reflects dietary intake, making the kidney the primary route of boron homeostasis. A 2025 double-blind RCT found boron supplementation (boric acid or boron citrate) did not reduce kidney stone incidence in nephrolithiasis patients versus placebo, and only urine phosphorus was elevated.

• boxthorneScientific

  LBPs exert renoprotective effects in multiple preclinical injury models, reducing serum creatinine, BUN, and inflammatory markers. LBP promotes uric acid excretion and inhibits xanthine oxidase in hyperuricemia models. TCM classifies boxthorn as a primary kidney-nourishing agent with over 2,000 years of documented use.

• broomrapeScientific

  Orobanche extracts have demonstrated renal antioxidant and protective effects in rodent models of nephrolithiasis. Traditional use of broomrape as a kidney tonic is extensively documented across TCM, Tibetan, and Western herbal traditions. Preclinical evidence includes improved renal antioxidant enzyme levels and reduced liver enzyme elevation in nephrolithiasis models.

• carrotScientific

  Carrot extract has demonstrated nephroprotective effects in rat models of gentamicin-induced nephrotoxicity, significantly reducing serum urea, BUN, uric acid, and creatinine in a dose-dependent manner. Histological analysis confirmed renal tissue protection. Evidence is preclinical only.

• caryophylleneScientific

  BCP has nephroprotective effects in renal ischemia-reperfusion injury and cisplatin-induced nephrotoxicity models via CB2-mediated antioxidant and anti-inflammatory mechanisms. Nephroprotection is listed among BCP's established pharmacological properties in systematic reviews.

• chaff flowerScientific

  Nephroprotective activity of A. aspera is demonstrated in preclinical models, including kidney stone models and chemically induced renal injury. Diuretic activity supports fluid balance in renal function.

• chanca piedraScientific

  Chanca piedra (Phyllanthus niruri), meaning 'stone breaker,' is used in Amazonian and South Asian traditional medicine for kidney stones and urinary disorders. Clinical evidence supports its anti-urolithiatic action: a 12-week study in 56 kidney stone patients showed significant changes in urinary magnesium and potassium/creatinine ratios. Preclinical studies show it inhibits calcium oxalate crystal aggregation, promotes diuresis, and exerts nephroprotection via ellagic acid.

• chinese salvia rootScientific

  Danshen injection is used clinically in China for renal diseases including acute renal failure and nephritis. Preclinical studies demonstrate protection against iron overload-induced kidney injury and cyclosporin-induced nephrotoxicity. Its anti-fibrotic properties are relevant to chronic kidney disease.

• chlorideScientific

  The kidneys are the primary site of chloride regulation and are vulnerable to chloride excess. Hyperchloremia is associated with acute kidney injury (AKI) and reduced renal blood flow. Hypochloremia in heart failure patients is linked to diuretic resistance and worsening renal function. Chloride transport by the NCC and other tubular mechanisms is central to renal physiology.

• chokeberryScientific

  Animal studies show chokeberry alleviates kidney damage by reducing pro-inflammatory factors, oxidative stress, lipid peroxidation, and apoptosis in renal tissue. Preliminary human metabolic trial data track creatinine levels alongside uric acid. A 2022 Nutrients review confirmed renal protective effects require confirmation in human clinical trials.

• chrysinScientific

  Chrysin demonstrates nephroprotective activity in multiple preclinical models of kidney injury, including adenine-induced CKD, colistin nephrotoxicity, paracetamol nephrotoxicity, cisplatin-induced injury, and diabetic nephropathy. It restores antioxidant enzymes, reduces inflammatory markers, and improves renal function parameters.

• coixScientific

  Coix seed oil demonstrated renoprotective effects in a hyperuricemia mouse model, improving renal mitochondrial function, reducing urate transporter dysregulation, and ameliorating kidney oxidative stress. Traditional use for kidney-related edema and dysuria is also documented.

• CoQ10 (coenzyme Q10)Scientific

  CoQ10 is highly concentrated in the kidneys and has demonstrated renal-protective effects in clinical and animal studies. Clinical trials show CoQ10 reduces oxidative stress, inflammation (CRP, IL-13), and mitochondrial dysfunction in CKD and hemodialysis patients. Plasma CoQ10 is reduced in CKD patients, and supplementation has been associated with reduced oxidative stress markers.

• cordycepsScientific

  Cordyceps sinensis (caterpillar mushroom, Dong Chong Xia Cao) is one of the most extensively studied TCM herbs for chronic kidney disease. A 2014 Cochrane review of 22 RCTs involving 1,746 CKD patients found that Cordyceps preparations significantly decreased serum creatinine, increased creatinine clearance, and reduced 24-hour proteinuria versus conventional treatment alone. A 2024 meta-analysis of 15 studies (1,310 patients) further confirmed clinical effectiveness in renal dysfunction.

• cranberryScientific

  Cranberry (Vaccinium macrocarpon) has a well-documented role in preventing urinary tract infections, which indirectly protects kidney health by reducing risk of pyelonephritis (kidney infection). Proanthocyanidins (PACs), particularly Type A, prevent E. coli adhesion to uroepithelial cells. The FDA issued a qualified health claim (2020) supporting 500 mg/day cranberry supplement for reducing recurrent UTI risk in healthy women. A 2022 eFood review also summarized evidence for benefits in chronic renal failure patients.

• cucumberScientific

  Cucumber extracts show hepato- and nephroprotective effects in animal models, particularly in diabetes-induced organ injury. The diuretic and natriuretic properties of cucumber's potassium also support renal function by reducing sodium load. The Cucumis genus review identifies organ-protective activity as a validated pharmacological property.

• d-alpha tocopherolScientific

  Alpha-tocopherol has been specifically investigated in chronic kidney disease (CKD), where vitamin E–coated hemodialyzers and oral supplementation have shown benefits in reducing cardiovascular risk and hematological complications. CKD is recognized as a state of relative vitamin E deficiency and impaired α-tocopherol metabolism.

• daidzinScientific

  Daidzin has documented nephroprotective properties in animal models of kidney injury, attenuating oxidative stress, inflammation, and apoptosis in renal tissue. A cisplatin nephrotoxicity mouse study showed daidzin reduced all kidney injury biomarkers. Nephroprotection is listed as a primary biological activity of daidzin.

• damianaScientific

  A PubMed-indexed study evaluated damiana's antioxidant effects in kidney mitochondria of streptozotocin-induced diabetic rats, showing protective effects against oxidative stress. Traditional use for kidney infections and renal disorders is documented. The evidence basis combines in vivo animal data with traditional records.

• dodderScientific

  The kidney is the most central organ target of dodder in both traditional and scientific contexts. Cuscuta chinensis aqueous extract has demonstrated significant recovery of renal function parameters in ischemia/reperfusion-induced acute renal failure rats, and hepatoprotective studies confirm antioxidant renal cytoprotection. Traditional use for kidney disorders is documented across virtually all systems of medicine that use dodder.

• dogwoodScientific

  Cornus officinalis is one of the primary TCM kidney-tonifying herbs with documented preclinical nephroprotective effects, especially in diabetic nephropathy. Animal studies show reduced proteinuria, improved glomerular structure, and reduced renal oxidative stress. One clinical study reported improved diabetic nephropathy symptoms in humans.

• enicostemma littoraleScientific

  Significant improvement in kidney function was clinically documented in 84 T2D patients after three months of E. littorale treatment, including serum creatinine reduction. Animal models confirm nephroprotective activity, and renal cholesterol and triglyceride levels are reduced by extract treatment. Traditional use as a urinary astringent is also documented.

• eucommiaScientific

  Human clinical trial data show eucommia leaf extract significantly reduces SBP in CKD patients. Preclinical evidence shows protection against diabetic nephropathy (AGE suppression, Nrf2/RAGE modulation), renal fibrosis reduction, and preservation of calcium transport channels. TCM classifies it as the primary kidney tonic.

• fennelScientific

  Fennel exhibits documented diuretic activity and nephroprotective effects in animal studies. Seed extracts improve renal histopathology in PCOS rat models, and sprouted fennel extracts protect against CCl4-induced nephrotoxicity. Human renal studies are not available.

• fisetinScientific

  A 2025 systematic review confirmed preclinical evidence of fisetin protecting against nephrotoxicity, diabetic nephropathy, lupus nephropathy, and ischemia-induced kidney injury through antioxidant, anti-inflammatory, and senolytic mechanisms.

• forsythiaScientific

  Forsythia suspensa has documented nephroprotective properties in preclinical studies, particularly for forsythoside A in sepsis-related acute kidney injury models. Pharmacological reviews identify nephroprotective effects as a confirmed activity. Traditional use as a diuretic and for urinary stranguria also relates to kidney function.

• fu lingScientific

  Poria cocos demonstrates kidney-protective effects in multiple preclinical models including nephrotic syndrome, chronic kidney disease, septic acute kidney injury, and hyperuricemia. Mechanisms include diuresis via AQP2/ENaC regulation, anti-fibrosis, Nrf2-mediated antioxidant activation, and inflammatory cytokine suppression.

• fulvic acidScientific

  Fulvic acid supports renal function by chelating heavy metals and reducing their accumulation in kidney tissue. Humic acid has been used clinically as a nephroprotective agent in some contexts. However, at high doses or in impaired kidneys, fulvic acid's chelating properties may increase renal processing burden.

• ganodermaScientific

  A 2025 meta-analysis of 17 human RCTs found Ganoderma lucidum supplementation significantly reduced serum creatinine. Traditional Chinese medicine has used Ganoderma to tonify the kidney and treat nephritis for centuries, with documented renal-protective properties.

• glycineScientific

  Glycine is synthesized significantly in the kidney alongside the liver, and GlyNAC studies show kidney tissue glutathione deficiency in aging. Glycine is associated with kidney protection via antioxidant (GSH precursor) and anti-inflammatory mechanisms. GlyNAC supplementation in aged animal models restored GSH and reduced oxidative stress in kidney tissue.

• gooseberryScientific

  PMC 6926135 (2019 RCT) specifically states amla is beneficial in preventing age-related kidney diseases, with urinalysis as an included efficacy endpoint. Amla's antioxidant-mediated renoprotection against lipid accumulation and oxidative injury is documented.

• grape seedScientific

  A clinical trial in 33 kidney disease patients found GSE enhanced kidney function via antioxidant and anti-inflammatory support. A study of 23 chronic renal failure patients given GSE for 6 months reported decreased urinary protein and improved kidney filtration. Animal studies consistently show GSE reduces oxidative renal damage. Life Extension cites improvements in GFR and creatinine as preliminary clinical findings.

• hesperidinScientific

  Hesperidin demonstrates renoprotective effects by restoring renal antioxidant enzyme activity (CAT, GSH), reducing lipid peroxidation and DNA damage in renal tissue, suppressing renal angiotensin signaling (ACE, AT1, TGF-β1), and protecting against nephrotoxin-induced renal injury in preclinical models. No human clinical trials targeting renal function endpoints with hesperidin have been published.

• hibiscusScientific

  Clinical evidence supports Hibiscus sabdariffa's nephroprotective effects: an RCT in diabetic nephropathy improved renal function markers; a human study demonstrated uricosuric activity. Animal models confirm antiurolithiatic activity. HS diuretic effects are documented through aldosterone-pathway modulation.

• holarrhena antidysentericaScientific

  H. antidysenterica demonstrates diuretic activity in preclinical studies and anti-urolithic activity listed in a PubMed-indexed review (PMID 37605416). Unani medicine uses seeds as lithotriptic for urinary stones. Flavonoids (quercetin, rutin) provide a phytochemical basis for renal protective and anti-stone effects.

• hydrangeaScientific

  The kidney is the best-studied organ target of hydrangea in the preclinical science. Multiple rodent studies using cisplatin-induced, LPS-induced, and BSA-induced kidney injury models have demonstrated that H. paniculata coumarin extracts and the compound skimmin reduce BUN, serum creatinine, and urinary albumin excretion, and attenuate renal inflammation and apoptosis. No human renal studies exist.

• hydroxycitric acidScientific

  HCA is excreted in urine after oral supplementation and directly interacts with renal tubular calcium oxalate crystallization. In both rat nephrolithiasis models and Drosophila hyperoxaluria models, HCA reduces crystal formation, adhesion, and kidney injury. Mechanistically, HCA inhibits ACLY in proximal tubular cells and binds PPARα to reduce lipid peroxidation damage.

• indian gum arabic treeScientific

  Clinical trials demonstrate gum arabic supplementation improves renal biomarkers in CKD and haemodialysis patients. A 6-month study in 50 haemodialysis patients showed significant reductions in urea, creatinine, and uric acid. The 2024 narrative review (PMC11477033) summarizes multiple clinical trials supporting renal benefit.

• indian sarsparillaScientific

  Nephroprotective (renoprotective) activity of H. indicus is a confirmed pharmacological property with support from multiple in vivo animal studies. The PMC-indexed diabetic rat study showed significant reduction in kidney lipid peroxidation. Diuretic and anti-urolithiatic properties further support renal system benefit.

• L-arginineScientific

  The kidney is both a primary site of L-arginine synthesis (in the proximal tubule) and a key target of L-arginine's hemodynamic and anti-fibrotic effects. L-arginine administration increases renal plasma flow and glomerular filtration rate via NO, and ameliorates tubulointerstitial fibrosis, proteinuria, and macrophage infiltration in multiple experimental models of chronic kidney disease. Human evidence is limited and effects are context-dependent.

• l-carnitineScientific

  The kidneys are a primary site of endogenous L-carnitine biosynthesis and tubular reabsorption. Renal disease disrupts carnitine homeostasis through reduced synthesis and dialysis losses, leading to deficiency. The FDA has approved IV L-carnitine for this indication; supplementation addresses anemia, cardiomyopathy, fatigue, and muscle weakness in dialysis patients.

• L-citrullineScientific

  The kidneys are both the primary site of L-citrulline to L-arginine conversion (proximal tubules) and a major target organ for citrulline's protective effects. Animal studies published in Hypertension (AHA) show L-citrulline, but not L-arginine, prevented diabetes-induced glomerular hyperfiltration and proteinuria. A cross-sectional human study found serum citrulline levels inversely associated with oxidative stress markers and CKD progression. Preclinical data confirm renal protection via Nrf2/HO-1 antioxidant signaling.

• L-glutathioneScientific

  Renal tubular epithelial cells maintain high GSH concentrations as they are exposed to toxic compounds during filtration and excretion. GSH-mediated conjugation facilitates renal elimination of heavy metals and xenobiotics. Low GSH is documented in chronic kidney disease, and preliminary GSH augmentation trials show improved outcomes.

• L-histidineScientific

  Histidine is conditionally essential in chronic kidney disease, where plasma levels are chronically depressed. Low plasma histidine in CKD patients independently predicts inflammation, protein-energy wasting, and mortality. Histidine supplementation supports nitrogen balance and hemoglobin levels in uremic and dialysis patients.

• L-methionineScientific

  The kidneys are directly involved in L-methionine effects: they excrete sulfate metabolites that acidify urine (exploited in stone prevention), and higher plasma homocysteine from methionine metabolism has been associated with renal endothelial stress. Animal studies show L-methionine protects against drug-induced nephrotoxicity via antioxidant mechanisms. Adequate methionine/cysteine status supports renal GSH pools.

• lemonScientific

  Lemon juice is clinically established for kidney stone prevention through urinary citrate elevation, which inhibits calcium oxalate crystal nucleation. Multiple clinical studies and the National Kidney Foundation support dietary lemon juice as a practical strategy for recurrent stone prevention in hypocitraturic patients.

• limeScientific

  Lime's high citrate content directly protects the kidneys by inhibiting calcium oxalate crystal formation and reducing renal tubular inflammation. A 2025 RCT in 173 patients demonstrated that a lime-based supplement significantly reduced kidney stone recurrence and renal inflammatory biomarkers (urinary IL-8 and protein excretion) over 24 months.

• lotus seedScientific

  Lotus seedpod extract protects renal cells and kidney tissue from cisplatin- and CCl4-induced injury via antioxidant mechanisms in animal models. TCM classifies lotus seeds as tonifying and protecting the Kidney meridian.

• magnesiumScientific

  The kidneys are the primary site of magnesium excretion and the major regulator of whole-body magnesium homeostasis; typically only 3–5% of filtered Mg is excreted in urine. Renal magnesium handling is tightly regulated by PTH, and kidney disease profoundly disrupts this regulation. Higher urinary magnesium (from adequate dietary intake) is also associated with reduced risk of kidney stone formation.

• methionine methylsulfonium chlorideScientific

  MMSC has been shown to protect the kidneys in rat models of nephrotic syndrome and mouse models of diabetic nephropathy, improving kidney function parameters, reducing proteinuria, and suppressing renal inflammatory signaling via ERK/NF-κB inhibition. All evidence is currently preclinical.

• molybdenumScientific

  Molybdenum homeostasis is regulated almost entirely through renal excretion. The kidneys are also the primary organ studied in the 2024 NHANES epidemiological study linking urinary molybdenum to reduced prevalence of hyperuricemia and kidney-related oxidative stress outcomes. Animal data show renal effects at high molybdenum doses.

• morusScientific

  A clinical trial in 60 diabetic patients with nephropathy found M. alba supplementation improved antioxidant status and blood lipid profiles, suggesting renoprotective benefit. Preclinical evidence confirms Morus alleviates hyperglycaemia-induced kidney damage via antioxidant and anti-inflammatory mechanisms.

• myrobalanScientific

  TC demonstrates nephroprotective properties in animal studies, significantly reducing serum urea and creatinine in diabetic rats. It is classified as nephroprotective in the comprehensive PMC review. A clinical study in hyperuricemic patients measured creatinine as a secondary outcome.

• NAC (N-acetyl cysteine)Scientific

  NAC has substantial clinical evidence for renal protection, most notably in preventing contrast-induced nephropathy (CIN) in patients undergoing coronary angiography and in slowing progression of chronic kidney disease (CKD). A 3-year cohort study in 330 CKD patients found NAC use was associated with reduced CKD progression to ESRD. Meta-analyses have examined perioperative NAC for acute kidney injury prevention in cardiac surgery.

• naringinScientific

  Naringin exerts nephroprotective effects against cisplatin, methotrexate, doxorubicin, and ischemia-reperfusion kidney injury in animal models via Nrf2 activation and NF-κB suppression. A 2022 review concluded naringin is a promising candidate for kidney dysfunction prevention. No human renal clinical trials exist.

• okraScientific

  Okra has been clinically evaluated in diabetic nephropathy with RCTs assessing renal function markers, inflammatory gene expression (RAGE pathway), and PPAR/TGF-β/Nrf-2 gene expression. Traditional use for urinary and kidney disorders is additionally documented in African and Middle Eastern medicine.

• oleanolic acidScientific

  OA protects the kidneys from fibrosis, oxidative damage, and diabetic nephropathy in multiple animal models via Nrf2 activation, TGF-β/Smad pathway inhibition, and reduction of inflammatory cell infiltration. OA also positively modulates renal vitamin D-activating enzyme CYP27B1 in human renal cells.

• ophiopogonScientific

  Preclinical studies demonstrate renal protective effects of Ophiopogon japonicus polysaccharides and ophiopogonin D, particularly in diabetic nephropathy models. Key outcomes include reduction of creatinine, BUN, fibrosis markers, and histopathological kidney damage.

• ophiopogon rootScientific

  Ophiopogon root constituents — particularly MDG-1 polysaccharide and ophiopogonin D — have been shown in peer-reviewed animal studies to protect the kidneys from diabetic nephropathy. They reduce glomerular fibrosis, normalize renal function markers, and suppress TGF-β1 and CTGF expression. This evidence is preclinical, not clinical.

• orangeScientific

  Orange juice raises urinary citrate levels and alkalinises urine pH, both of which protect against kidney stone formation. A systematic review of 13 studies confirmed that orange juice increased urinary citrate in 10 prospective clinical trials without increasing kidney stone risk, unlike grapefruit juice.

• paederia foetidaScientific

  P. foetida demonstrates renoprotective effects in diabetic and drug-induced models, reducing renal inflammation, oxidative stress, and structural damage. NF-κB inhibition and augmentation of renal antioxidant enzymes are the primary mechanisms identified.

• parsleyScientific

  Parsley has the most extensively studied herbal relationship with the kidney of any of its body system connections. It exhibits diuretic, nephroprotective, and anti-inflammatory renal effects supported by preclinical and limited human data, reviewed comprehensively in a 2024 Frontiers in Medicine systematic review.

• peachScientific

  Peach extracts have demonstrated cytoprotective and antioxidant effects in kidney tissue in ex vivo models. Peach leaves are classified as diuretic, supporting kidney-related traditional use for urinary conditions. Preclinical evidence suggests polyphenols protect renal tissue from oxidative damage.

• phellodendron amurenseScientific

  P. amurense (Huang Bai) is classified in TCM as entering the Kidney meridian and is the primary herb for kidney yin deficiency conditions. A water extract of Phellodendron cortex + Aralia cortex (1:1) inhibited oxidative stress in kidneys of diabetic rats (J Ethnopharmacol 2000). Berberine is studied in metabolic syndrome-associated kidney disease with demonstrated renoprotective mechanisms.

• phosphorusScientific

  The kidneys are the principal organ of phosphorus homeostasis, regulating serum phosphate via tubular reabsorption under the control of PTH, FGF-23, and vitamin D. CKD impairs this regulation, causing hyperphosphatemia that drives cardiovascular and bone complications.

• polyporusScientific

  The kidneys represent the best-evidenced organ target of P. umbellatus. Multiple in vivo studies document nephroprotection, anti-fibrotic effects, diuretic activity via renal tubular modulation, and clinical use in chronic renal failure formulas.

• pomeloScientific

  Pomelo and naringenin exhibit nephroprotective effects in preclinical models, reducing urinary markers of kidney damage and oxidative stress in diabetic and toxin-challenged animals. A PMC review highlights nephroprotective activity as a documented pharmacological property of C. grandis. Pomelo's vitamin C-rich composition also supports urinary tract health through acidification.

• potassiumScientific

  The kidneys both regulate potassium balance and are themselves affected by potassium status. Low dietary potassium promotes hypokalemic nephropathy, nephrolithiasis, and accelerated CKD progression; adequate potassium intake is associated with kidney protection via multiple mechanisms including blood pressure reduction and natriuresis.

• psylliumScientific

  Psyllium's relationship with the kidneys operates through the gut–kidney axis: by modifying gut microbiota and improving intestinal barrier integrity, it reduces the generation and systemic absorption of uremic toxins (indoxyl sulfate, p-cresyl sulfate) that drive CKD inflammation and progression. Preclinical CKD models show reduced serum creatinine and urea nitrogen; epidemiological data (NHANES III, n=14,543) link dietary fiber intake to reduced kidney disease mortality.

• pumpkinScientific

  Pumpkin seed protein protects kidney tissue from oxidative stress induced by high-fructose metabolic syndrome models. Pumpkin seed extract also improved bladder and urinary function in clinical studies. Magnesium in pumpkin seeds has an established role in reducing calcium oxalate crystallisation relevant to kidney stone prevention.

• punarnavaScientific

  Nephroprotective activity of B. diffusa is one of its most extensively studied pharmacological properties, demonstrated across in vitro, in vivo, and limited clinical contexts. It normalizes elevated creatinine, urea, uric acid, and BUN in nephrotoxicity models, enhances renal antioxidant enzymes, and has been studied in patients with diabetic nephropathy. Traditional Ayurvedic texts describe it as rejuvenative to the urinary/kidney system.

• queen of the meadowScientific

  Pre-clinical evidence from a PubMed-indexed in vivo rat study demonstrated that Filipendula ulmaria extracts attenuate cisplatin-induced kidney oxidative stress and normalize renal function parameters. Traditional use of the herb as a diuretic for kidney disorders is also extensively documented in pharmacopeial references.

• quercetinScientific

  Quercetin has demonstrated nephroprotective effects in preclinical models of acute kidney injury (AKI), diabetic nephropathy, and chemotherapy-induced nephrotoxicity, with one small human clinical trial showing protective effects against contrast-induced nephropathy. A 2023 meta-analysis of 19 animal AKI studies confirmed significant reductions in blood urea nitrogen and serum creatinine with quercetin treatment.

• radishScientific

  Radish demonstrates nephroprotective and diuretic properties in animal studies. Radish extract reduced renal toxicity markers in preclinical models, and its diuretic effect (validated in Wistar rat studies) promotes urinary flow that may reduce stone-forming mineral concentration. Traditional medicine systems formally document radish for kidney and urinary disorders.

• rehmanniaScientific

  Kidney tonification is the primary traditional function of Rehmannia, and it is supported by clinical and preclinical evidence. A Taiwanese retrospective cohort study showed Rehmannia use was associated with decreased lupus nephritis risk in SLE. Rehmannia Six Formula reduced risk of kidney failure in T2DM. Catalpol alleviates diabetic nephropathy-associated proteinuria and podocyte injury in preclinical models.

• reishi mushroomScientific

  MSKCC explicitly lists renoprotective effects among reishi's confirmed in vitro and in vivo preclinical properties. Mechanisms include oxidative stress reduction, NF-κB anti-inflammatory activity, and anti-fibrotic effects in kidney tissue. A 2023 PLOS ONE repeated-dose study confirmed preserved kidney histology and biomarkers in rats. TCM used reishi to tonify kidney Qi. No human clinical trials with renal function as a primary endpoint have been published.

• rhubarbScientific

  Multiple RCTs and a 2023 meta-analysis confirm rhubarb's renoprotective activity in chronic kidney disease, with significant reductions in serum creatinine, BUN, and uric acid, and increases in GFR. The mechanisms include direct nephroprotective effects of anthraquinones and gut-based uremic toxin clearance.

• rhubarb rootScientific

  Rhubarb root has the strongest human clinical evidence among all herbal medicines for chronic kidney disease, with multiple RCTs and a 2023 meta-analysis demonstrating reduction of serum creatinine, BUN, uric acid, and proteinuria, plus improved GFR, in CKD stages 3–4.

• roseScientific

  Rosehip extract has shown renal protective effects in a pre-clinical study, with Rosa canina-treated animals showing significantly lower blood creatinine and urea concentrations and higher antioxidant power versus controls after induced renal ischemia-reperfusion injury. Traditional Persian and Ayurvedic medicine use rose to cool and support the kidneys.

• rosmarinic acidScientific

  Rosmarinic acid demonstrates renoprotective activity in multiple preclinical models, reducing oxidative damage, inflammation, and fibrosis markers in kidney tissue. In vitro studies using human-derived dialysis system cells showed RA reduced inflammatory cytokine production. A combined hypertension-diabetes-nephrolithiasis rat model confirmed RA's renal protective potential.

• rubia cordifoliaScientific

  R. cordifolia demonstrates documented anti-urolithiasis, anti-nephrotoxicity, and renoprotective pharmacological activities confirmed across multiple preclinical studies. Root extract normalized urinary mineral excretion and reduced crystal deposition in urolithiasis rat models, and a 2025 PMC study confirmed renoprotection against contrast-induced acute kidney injury via autophagy activation.

• rutinScientific

  Rutin is extensively studied for nephroprotective effects in animal models of diabetic nephropathy and drug-induced nephrotoxicity, reducing proteinuria, normalizing creatinine/BUN, and restoring renal antioxidant enzyme activities through antioxidant and NF-κB-mediated anti-inflammatory mechanisms.

• safflowerScientific

  Safflower Yellow (SY), particularly HSYA, has documented renoprotective effects. A meta-analysis of RCTs found HSYA significantly improved renal function indices (BUN, urinary albumin excretion rate, serum creatinine) in diabetic kidney disease patients. Mechanistically, HSYA mitigates oxidative stress and inflammation in kidney tissue of diabetic nephropathy rat models. Safflower Yellow is documented to distribute to kidney tissue and SY has demonstrated protective effects on the kidneys in pharmacological reviews.

• sarsaparillaScientific

  Smilax glabra demonstrates renoprotective effects via astilbin in preclinical diabetic nephropathy models, acknowledged by MSKCC. The standardized flavonoid extract (SGF) of S. glabra has documented nephroprotective effects in animal studies. Traditional use as a diuretic and kidney tonic is well established. German Commission E warns of potential kidney irritation at high doses.

• schisandrinsScientific

  The 2026 Frontiers PMC review confirms that Schisandrin B's mitochondrial-protective mechanisms operate in renal tissue among other organs. TCM extensively documents Schisandra for kidney deficiency patterns. Preclinical nephroprotective evidence is supported by the broader mitochondrial-antioxidant mechanism.

• sclerotiumScientific

  Poria cocos sclerotium and its surface layer (Fu-Ling-Pi) are used in TCM for kidney disease and edema, with modern studies confirming nephroprotective effects via Nrf2/NF-κB pathway modulation, diuretic actions via the AVP-V2R-AQP2 axis, and uric acid reduction in hyperuricemia models.

• secoisolariciresinol diglucosideScientific

  SDG protects renal tissue against cadmium-induced oxidative nephrotoxicity, benzo[a]pyrene–induced renal damage, and lupus nephritis–associated inflammation in preclinical models. It reduces renal lipid peroxidation, nitric oxide overproduction, and inflammatory markers, acting as both an antioxidant and a heavy-metal chelating agent. SDG also reduces renal inflammation and lipid peroxides in polycystic kidney disease models.

• sesameScientific

  Sesame lignans (sesamolin) inhibit lipid peroxidation in rat kidney (J Nutr 1998) and sesame compounds offer protection against chemical-induced kidney damage in multiple animal studies. Sesame oil protected kidney function markers in a 2022 animal study (sodium arsenite model). An 18 g flax/pumpkin/sesame seed combination in a kidney disease cohort reduced inflammatory markers 51–79%. Human evidence is limited but mechanistic support is strong.

• silymarinScientific

  A 2025 systematic review and meta-analysis of 10 clinical trials found silymarin significantly reduced serum creatinine in drug-induced acute kidney injury (Hedges' g −1.23; p=0.0024). A pediatric RCT confirmed renal protection against methotrexate-induced nephrotoxicity. Animal studies document renoprotection via oxidative stress reduction and mitochondrial preservation.

• smilaxScientific

  Smilax glabra rhizome extracts have documented renoprotective activity in uric acid nephropathy rodent models, including reduction of renal oxidative stress, inflammatory infiltration, and modulation of renal urate transporters. S. china polysaccharide also protected against APAP-induced hepato-renal injury via Nrf2-ARE activation.

• sodiumScientific

  The kidneys are the central organ of sodium homeostasis, filtering and then selectively reabsorbing sodium across the nephron under tight hormonal control. Excess dietary sodium raises albuminuria in some populations, and sodium restriction is recommended in chronic kidney disease guidelines, though evidence on hard kidney outcomes (ESKD) is mixed.

• soursopScientific

  A. muricata extracts demonstrate renoprotective activity in rodent models of toxic kidney injury, restoring renal function markers and reducing oxidative stress and inflammatory gene expression. Traditional use for kidney-related conditions is also documented.

• soyScientific

  Soy protein as a partial replacement for animal protein has clinical evidence for reducing proteinuria and slowing CKD progression in diabetic nephropathy. Meta-analyses of RCTs confirm reductions in proteinuria, serum creatinine, blood urea nitrogen, and CRP in predialysis CKD patients.

• soy isoflavonesScientific

  Soy isoflavone-containing protein has been shown in meta-analyses of RCTs to reduce proteinuria, serum creatinine, and CRP in predialysis CKD patients, indicating a renal protective role particularly in the context of diabetic nephropathy and chronic inflammation.

• soybeanScientific

  Clinical and mechanistic evidence supports that soy protein has direct renoprotective effects in chronic kidney disease, reducing renal fibrosis via TGF-β pathway inhibition, decreasing proteinuria, improving antioxidant status, and modestly lowering blood pressure via reduced ACE activity. Genistein protects kidney tubular cells from inflammation and oxidative stress. A longitudinal RCT found soy protein positively affected cardiorenal indices in diabetic nephropathy.

• sphaeranthus indicusScientific

  Nephroprotective (renoprotective) activity is documented for S. indicus in preclinical studies, including protection against diabetic nephropathy in STZ-induced rats. Multiple phytopharmacological reviews list this as an experimentally confirmed activity.

• SPMs (specialized pro-resolving mediators)Scientific

  SPMs are produced in renal tissue and protect against glomerulonephritis, tubular injury, and diabetic nephropathy. Human studies document reduced urinary and plasma resolvin levels in progressive kidney disease. LXA4 is detectable in human renal biopsy specimens and correlates with disease severity.

• steviaScientific

  A 9-month randomized placebo-controlled RCT in 97 Stage I–III CKD patients confirmed significant reductions in microalbuminuria, serum creatinine, serum uric acid, and inflammatory markers with stevioside supplementation. Effects reversed during washout. Animal and in vitro studies consistently document stevia's nephroprotective effects through anti-inflammatory and antioxidant mechanisms.

• sweet flagScientific

  PMC-published animal research demonstrates nephroprotective activity of A. calamus, with improved GFR, creatinine clearance, and histopathological kidney protection. Traditional Ayurvedic and Unani documentation of kidney indications is consistent.

• taurineScientific

  Taurine is renoprotective in animal models across multiple types of kidney disease, reducing oxidative stress, proteinuria, and mitochondrial dysfunction. Clinical relevance is supported by its effects on diabetic nephropathy biomarkers in RCTs, though kidney-specific human trials are limited.

• tinospora cordifoliaScientific

  T. cordifolia exerts nephroprotective effects in gentamicin-induced nephrotoxicity and diabetic nephropathy animal models, reducing renal oxidative stress and inflammatory damage. It is classified as diuretic and anti-lithic in traditional Ayurveda.

• triphalaScientific

  Triphala demonstrates nephroprotective activity in multiple animal models by upregulating antioxidant enzymes (SOD, GST, GPx) and reducing lipid peroxidation and kidney dysfunction markers. It protects against paracetamol-induced renal toxicity and bromobenzene-induced nephrotoxicity. Benefits in diabetic nephropathy are documented in animal models.

• vitamin B6Scientific

  Vitamin B6 deficiency is prevalent in chronic kidney disease (CKD) and haemodialysis patients, and is associated with elevated inflammatory markers and oxalate accumulation. Limited experimental data suggest pyridoxamine may reduce urinary oxalate and calcium oxalate stone formation, though no RCTs have confirmed this in humans.

• 2,3-dihydroxybutanedioic acidTraditional

  Tartaric acid has been studied in animal models as a modulator of urinary mineral balance, reducing calcium oxalate crystalluria and the incidence of urinary calculi. Tartrate also participates directly in urinary chemistry, as calcium tartrate has been identified as a constituent of rare human kidney stones. Human clinical evidence for tartaric acid's effect on the kidney system is limited to a metabolic study showing altered lithogenic urine properties after tamarind consumption.

• adzuki beanTraditional

  TCM places adzuki bean as a primary kidney-supportive food listed in the Chinese Pharmacopoeia for diuresis and edema. Animal work shows adzuki bean seed coat proanthocyanidins protect against cisplatin-induced renal interstitial fibrosis. Human clinical evidence for kidney function endpoints is absent.

• agrimonyTraditional

  Agrimony is used in European folk medicine for kidney inflammation (pyelonephritis) and has documented diuretic and uricosuric properties studied pharmacologically by Giachetti et al. (1986). Traditional Eastern European herbalism employs it specifically for kidney and urinary system conditions. No human RCT exists.

• alfalfaTraditional

  Alfalfa is documented in multiple pharmacological monographs and traditional medicine systems as a kidney tonic and remedy for kidney disorders. The Drugs.com monograph specifically traces the origins of medicinal alfalfa use to anecdotal reports of kidney benefits. Human clinical evidence is absent.

• alkanetTraditional

  Alkanet is documented in traditional medicine as both a diuretic and a remedy for kidney stones. Multiple ethnobotanical sources from Mediterranean and South Asian traditions list kidney stone treatment as a traditional use. No pharmacological or clinical studies have investigated these renal claims.

• anemarrhena asphodeloidesTraditional

  In TCM, anemarrhena acts on the Kidney meridian and is used to nourish Kidney Yin, reduce steaming bone disorder, and address Kidney Yin deficiency symptoms including night sweats, tidal fever, and nocturnal emissions. It is classified as diuretic and used for kidney dysfunction and urinary conditions.

• artichokeTraditional

  Artichoke leaf has been used as a diuretic and kidney tonic in traditional European medicine since Roman times, recognized in EMA HMPC monographs. Traditional herbalism uses artichoke to reduce peripheral edema and promote urinary elimination. Clinical evidence for direct renoprotective effects is limited primarily to one small study in chronic kidney disease patients showing improved lipid profile.

• asparagusTraditional

  Asparagus has one of the most consistently documented traditional uses for kidney health across all major medical traditions, with pharmacopoeial recognition for kidney/urinary indications. Animal studies show ACE-inhibitory effects protective of renal function and improved creatinine clearance. Urinary mineral balance data supports kidney stone prevention potential.

• banabaTraditional

  Banaba is traditionally used across the Philippines, Taiwan, China, and Japan for kidney health, including kidney stone dissolution and kidney cleansing. Preclinical zebrafish studies show banaba protects against diet-induced nephromegaly and kidney oxidative stress. No human renal clinical trials have been published.

• basilTraditional

  Basil is documented in Ayurveda and traditional medicine as a diuretic and treatment for kidney infections. Traditional use for kidney stones is well-recorded. Animal studies show no nephrotoxicity. A clinical meta-analysis noted no kidney or liver toxicity in participants taking holy basil.

• bearberryTraditional

  Bearberry (Arctostaphylos uva-ursi) has been used in European and Native American traditional medicine for centuries as a urinary antiseptic and kidney support herb. Its active constituent, arbutin, is hydrolyzed in alkaline urine to hydroquinone, which exerts antibacterial effects in the urinary tract and kidneys. German Commission E and ESCOP approve bearberry leaf for inflammatory conditions of the urinary tract. It is used specifically for urinary tract infections that may affect the kidneys.

• biota seedTraditional

  Biota seed enters the Kidney meridian in TCM, and its Yin-nourishing and essence-tonifying properties are credited with supporting the Kidney system, which in TCM governs aging, memory, hair, and fluid balance. This association underpins traditional uses for age-related conditions including cognitive decline and hair loss. No renal pharmacology studies exist for this herb.

• birchTraditional

  Birch leaf is formally classified by EMA HMPC, ESCOP, and the German Commission E for renal gravel and urinary tract irrigation—functions centred on kidney health. Birch bud is used in Eastern European traditions specifically as a kidney drainage remedy. Its diuretic, anti-inflammatory, and antiadhesive properties address multiple aspects of kidney function.

• borageTraditional

  Borage has documented traditional use for kidney-related conditions including chronic kidney inflammation and nephritis, based on its diuretic properties and anti-inflammatory activity. Leaf infusions were used to promote urination and reduce renal inflammation. No clinical trials have evaluated renal outcomes.

• bovine kidneyTraditional

  Cross-cultural traditional healing systems documented the consumption of animal kidneys to support human kidney function—the 'like supports like' principle of organotherapy. While selenium and CoQ10 in bovine kidney have indirect RCT evidence for renal function support, the glandular supplement itself has not been tested in controlled human kidney-function trials.

• buchuTraditional

  Buchu (Agathosma betulina, Agathosma crenulata) leaves have been used in South African Cape Herbal Medicine for centuries for urinary tract infections, kidney infections, and cystitis. Its volatile oil constituent diosphenol acts as a urinary antiseptic, and the herb has recognized diuretic properties. It is included in pharmacopeias including the British Herbal Pharmacopoeia for urinary complaints.

• burdockTraditional

  Burdock root is recognized as a diuretic that increases urine output and supports kidney filtration in both EMA traditional herbal medicine classification and multiple classical pharmacopeial texts. It has been used for kidney stones and urinary complaints for centuries. Preclinical evidence suggests protective effects against nephrotoxins.

• butcher's broomTraditional

  Traditional use of butcher's broom for kidney-related conditions including kidney stones and nephritis is documented in Turkish ethnobotanical records and in ancient Greek medicine. The PMC 2025 comprehensive review cites multiple ethnobotanical sources for this use. No clinical or pharmacological evidence supports a direct action on renal tissue or function.

• carawayTraditional

  Caraway is used as a diuretic in Moroccan and European traditional medicine. A PubMed-indexed pharmacological study evaluated caraway aqueous extract diuretic activity in rats, confirming urine output increase comparable to assessment against furosemide. Human evidence for kidney/diuretic effects is lacking.

• cardamomTraditional

  Cardamom has traditional use in Ayurvedic and South Asian medicine for kidney and urinary disorders, traditionally considered a diuretic and kidney tonic. A pharmacological study (Gilani et al., Journal of Ethnopharmacology) documented diuretic activity. Human clinical trial data specifically targeting kidney function endpoints are absent.

• catjang cowpeaTraditional

  In Ayurveda, cowpea is described as mildly diuretic and supportive of healthy urinary function, suggesting traditional recognition of renal relevance. Traditional folk medicine also documents cowpea use for edema. No clinical renal outcome data has been found.

• celeryTraditional

  Celery seed is used in Ayurvedic, TCM, Persian, and European traditional medicine for kidney support and diuresis. A clinical RCT found reduced BUN and serum creatinine with celery seed extract. Animal data show diuretic effects and protection against ischemia/reperfusion kidney injury.

• chickweedTraditional

  Chickweed is traditionally classified as a mild diuretic that supports kidney function, promoting elimination of waste products, uric acid, and excess fluid. Multiple herbalist monographs document kidney-supportive use. No clinical or controlled animal studies are available for this specific endpoint.

• chicoryTraditional

  Chicory has a historically documented role as a mild diuretic used to support kidney function and promote excretion of uric acid and other metabolic waste products across European, Turkish, and Indian traditional medicine. Laboratory research supports uricosuric effects via renal urate transporter modulation, but human clinical trials in kidney-specific outcomes are absent.

• cleaversTraditional

  The kidneys are a primary traditional organ target of cleavers, used as a renal tonic and diuretic across European, Native American, and Asian traditions. Preclinical phytochemical reviews support renoprotective mechanisms.

• clematisTraditional

  Historical Clematis use for 'renosis, nephrosis, and urinary disorders' is documented in folk medicine records. TCM Chuan Mu Tong targets the lower burner including kidney-related fluid metabolism. No clinical studies exist; caution applies as related Aristolochia adulterants caused renal toxicity.

• cornTraditional

  Corn silk has extensive traditional use for kidney conditions across Chinese and other medical traditions, with preclinical evidence for nephroprotection, reduction of creatinine and urea, and inhibition of kidney stone formation. Human clinical data for kidney-specific endpoints are sparse.

• cornsilkTraditional

  Cornsilk (Zea mays stigma) has been used in North American indigenous and European folk medicine as a diuretic and for kidney and urinary conditions including nephritis, cystitis, and kidney stones. It is included in traditional pharmacopeias and formularies as a urinary demulcent and diuretic. Animal studies support diuretic activity; it contains flavonoids, saponins, tannins, and potassium which promote urinary output.

• dandelionTraditional

  Dandelion (Taraxacum officinale) has a long history of use as a diuretic and kidney tonic in European, North American, and Chinese traditional medicine. Both the root and leaf are used; the leaf in particular is a recognized diuretic. A small human pilot study (Journal of Alternative and Complementary Medicine, 2011) found that dandelion leaf extract significantly increased urinary frequency and volume. German Commission E approves dandelion herb and root for dyspepsia and to stimulate diuresis.

• devil's clawTraditional

  Traditional southern African medicine used Devil's Claw for kidney and bladder disorders. The British Herbal Pharmacopoeia includes a diuretic indication. Limited clinical observations have noted occasional renal effects in users, though these were not studied systematically.

• dioscoreaTraditional

  Dioscorea is used in TCM to tonify the kidneys and is listed in the Chinese Pharmacopoeia for conditions such as frequent urination and spermatorrhoea. Wild yam also has traditional use for kidney complaints in Western herbalism. Caution is noted as prolonged use of Dioscorea villosa extract was associated with pro-fibrotic kidney injury in a rat study.

• dog roseTraditional

  Dog Rose has a traditional role as a kidney tonic and diuretic across European and Chinese traditional medicine, with animal study evidence of reduced renal oxidative stress and kidney stone protection. No controlled human trials of renal outcomes exist.

• european elderTraditional

  European elder has been used traditionally as a diuretic and for kidney-related conditions including dropsy (edema) since classical antiquity. Hippocrates and Dioscorides specifically mentioned kidney and fluid-related applications. EMA documentation acknowledges these traditional diuretic properties. No human clinical trials address kidney function.

• geraniumTraditional

  Geranium is used traditionally for nephritis and kidney conditions. A preclinical study found geranium extract to be renoprotective against acetaminophen-induced kidney damage via antioxidant mechanisms.

• goji berryTraditional

  Goji berry has a 2,000-year tradition in TCM specifically as a kidney tonic (Gou Qi Zi is classified as entering the Kidney channel). Modern research provides limited but supportive data: LBP reduced renal injury markers (urine protein, glomerular area, IL-8) in diabetic nephropathy animal models. The berry's betaine may support cellular hydration under osmotic stress relevant to kidneys.

• gokhruTraditional

  Gokhru (Tribulus terrestris, Gokshura) is a classic Ayurvedic herb for kidney and urinary disorders, listed in Charaka Samhita under Mutravirechaniya (drugs that promote diuresis). It is traditionally used for kidney stones, dysuria, and nephritis. Preclinical studies confirm diuretic activity and some anti-urolithiatic effects. The herb is also used in Unani and TCM systems for urinary and kidney conditions.

• goldenrodTraditional

  Goldenrod (Solidago virgaurea and related species) is approved by German Commission E and ESCOP for irrigation therapy of inflammatory diseases of the lower urinary tract, kidney gravel, and to prevent kidney stone recurrence. It has a centuries-long use in European herbal medicine as a diuretic and urinary anti-inflammatory. Multiple flavonoids, saponins, and phenolic acids contribute to its diuretic and anti-inflammatory renal effects.

• gravel rootTraditional

  The kidney is the primary organ of gravel root's traditional therapeutic focus—hence its alternative common name 'kidney root.' It is used for renal support, kidney stones, edema, and renal inflammation, documented in Native American ethnobotany and Eclectic pharmacopeias.

• greek mountain teaTraditional

  GMT's traditional use specifically includes chronic kidney disease and is documented as having diuretic properties in multiple ethnobotanical surveys and peer-reviewed phytochemical reviews. The 2023 systematic monograph lists kidney disease among traditional indications. No human renal clinical data have been published.

• gymnema sylvestreTraditional

  Gymnema sylvestre is documented in Ayurveda as a diuretic and remedy for renal and vesicle calculi (kidney stones). Traditional sources also record its use for kidney disease. Preclinical evidence from a 2024 RCT shows no kidney toxicity signal at therapeutic doses, and animal models suggest nephroprotective potential.

• hollyTraditional

  The root and leaves of I. aquifolium have a documented tradition as diuretics, with specific references to treating kidney stones, nephritis, and conditions requiring increased urine output. Nicholas Culpeper specifically noted the kidney-relevant diuretic action.

• horseradishTraditional

  Horseradish has a traditional use as a diuretic that stimulates renal function and promotes urinary output. Traditional herbalists used it for kidney stones and blocked urination. Sinigrin is attributed with stimulating renal capillaries. All evidence is traditional; horseradish is contraindicated in kidney impairment.

• horsetailTraditional

  Horsetail (Equisetum arvense) has been used in European, North American, and Chinese traditional medicine as a diuretic and antilithic herb for kidney stones and urinary complaints. German Commission E approves it for irrigation therapy of bacterial and inflammatory diseases of the lower urinary tract and for kidney stones. A human study found that horsetail consumption increased diuresis in individuals with a history of uric acid kidney stones.

• huckleberryTraditional

  Huckleberry leaf preparations have traditional documentation as diuretics that support kidney function and eliminate waste products. Quinic acid in the leaves is metabolized partly by the kidneys. Traditional use included huckleberry for overall kidney and urinary health, though no clinical trials have examined huckleberry's direct effects on kidney function.

• juniper berriesTraditional

  Juniper berries (Juniperus communis) have been used in European, North American, and Middle Eastern traditional medicine for centuries as a diuretic and for urinary and kidney complaints. German Commission E approves juniper for dyspeptic complaints; ESCOP notes diuretic use. The volatile oil constituent terpinen-4-ol increases renal blood flow and urinary output. Long-term or excessive use can irritate the kidneys.

• marshmallowTraditional

  Marshmallow root and leaf have a long-standing traditional use as urinary demulcents, soothing kidney and bladder mucosa. Traditional Western and Middle Eastern herbal medicine include kidney and bladder disorders as primary indications. The herb is classified as diuretic and anti-lithic in naturopathic monographs. Human clinical trial evidence is absent.

• milk thistleTraditional

  Milk thistle has documented traditional use for kidney support, with herbalists historically using it for kidney, liver, and spleen disorders. Animal studies demonstrate silymarin protects against chemically induced nephrotoxicity via antioxidant and anti-inflammatory mechanisms. Human clinical trials specifically targeting kidney outcomes are absent.

• milkweedTraditional

  Multiple milkweed species were specifically used in Indigenous and 19th-century herbal medicine for kidney ailments, kidney stones, and dropsy associated with renal dysfunction. The plant was described as diuretic and used to promote kidney function. Milkweed was included in 19th-century herbal pharmacopeias specifically for kidney ailments. No clinical evidence exists.

• momordicaTraditional

  Momordica charantia is traditionally used for kidney stones across multiple cultures. Preclinical animal studies demonstrate reduction of urinary and renal oxalate, calcium, phosphate, and uric acid levels. Human clinical evidence is absent. A 2021 MDPI mouse study also documented renoprotective properties.

• morindaTraditional

  Kidney tonification is the defining traditional action of M. officinalis in TCM, encompassing kidney-yang deficiency syndromes. Modern pharmacology identifies rutin in M. citrifolia as renal-antioxidant, reducing ROS-mediated renal malondialdehyde and restoring MnSOD and GSH, with positive histopathological effects on kidney morphology.

• mulleinTraditional

  Mullein has traditional use for kidney support, documented as a mild diuretic used to flush kidney pathways. An Appalachian folk use for kidney pain is recorded. A comprehensive phytochemical review (ResearchGate, Dar et al.) lists nephroprotective activity among confirmed biological properties of V. thapsus extracts.

• nettleTraditional

  Stinging nettle (Urtica dioica) leaf has a long traditional use in European herbal medicine as a diuretic and for kidney and urinary tract support, including irrigation therapy for urinary gravel. German Commission E approves nettle herb (leaf) as irrigation therapy for inflammatory diseases of the lower urinary tract and for prevention and treatment of kidney gravel. Preclinical studies support its diuretic activity and antioxidant effects in the kidney.

• nut grassTraditional

  C. rotundus has traditional use for kidney and urinary complaints including anti-urolithiatic (kidney stone prevention) applications. Diuretic classification in Ayurveda implies kidney-mediated effects. Preclinical long-term safety studies show no kidney function changes, suggesting renal safety.

• oriental arborvitaeTraditional

  P. orientalis has traditional use as a diuretic agent relevant to kidney and urinary function, documented in multiple pharmacological reviews. WebMD/NLM list water retention as a use. The plant's potential renal protective properties are suggested by its antioxidant and anti-inflammatory activity, though no specific kidney studies have been conducted.

• partheniumTraditional

  Kidney disease is explicitly listed by the NCCIH as a traditional indication for feverfew, documented in folk and traditional herbal medicine. No clinical studies have addressed renal outcomes. Traditional classification as a diuretic in some herbal monographs is the basis for this association.

• pennycressTraditional

  Pennycress seeds have been documented for use in kidney disorders by traditional healers in Ladakh, and Tibetan medicine specifically records the seeds for renal inflammation. Nicholas Culpeper noted its use for kidney inflammation in 17th-century European herbalism.

• plantagoTraditional

  Plantago asiatica is used in TCM as a diuretic with kidney support applications. Psyllium (P. ovata) seed husk has been studied in animal models of CKD, showing reductions in serum creatinine, blood urea nitrogen, and renal tubular injury through gut microbiota modulation.

• plantainTraditional

  Plantago has documented traditional renal applications including kidney stones and kidney inflammation. Psyllium supplementation reduced serum creatinine and blood urea nitrogen in CKD animal models via the gut-kidney axis. Diuretic effects have been documented preclinically. TCM uses Plantago asiatica for kidney-related complaints.

• prickly pear cactusTraditional

  Traditional diuretic use of prickly pear flowers is documented in Sicilian folk medicine. Animal studies show renal protective effects from prickly pear peel against oxidative injury. Antioxidant compounds may protect renal tissue. No human renal outcome trials have been published.

• privetTraditional

  Tonifying the kidneys is the central TCM application of Ligustrum lucidum, documented in the 2020 Chinese Pharmacopoeia and classical texts dating to 200 CE. Preclinical research confirms wide tissue distribution with liver and kidney as primary accumulation sites. The kidney-related formula Erzhi Pill is in documented clinical use.

• prunusTraditional

  Prunus africana bark preparations have documented traditional use for kidney disorders across multiple African communities, listed as a traditional indication in the Medscape clinical drug reference. Ethnomedicinal surveys in East and Southern Africa consistently identify kidney disease as a use. No controlled human trials specifically evaluating renal endpoints are available.

• purslaneTraditional

  Purslane has traditional use for kidney pain, urinary disorders, and kidney diseases across multiple world traditions. However, its high oxalate content (671–869 mg/100 g) can cause oxalate nephropathy with excessive consumption, as documented in case reports. The kidney relationship is therefore dual: traditional protective use alongside a documented risk.

• rehmannia glutinosaTraditional

  Rehmannia glutinosa (Di Huang) is a foundational TCM herb for 'Kidney Yin deficiency,' documented in Shen Nong's Herbal Classic and Chinese Pharmacopoeia. It is the principal ingredient in Liu Wei Di Huang Wan, the classic TCM formula for kidney tonification. Animal studies show nephroprotective effects including reduction of serum creatinine, proteinuria, oxidative stress, podocyte apoptosis, and renal fibrosis markers, though robust human RCTs are lacking.

• rose hipsTraditional

  Rose hip is documented in European, German, and Traditional Chinese Medicine as a kidney tonic with mild diuretic properties, used for kidney disorders, bladder stones, and urinary cleansing. Multiple authoritative herbal sources confirm this traditional use. Organic acids, antioxidant polyphenols, and antibacterial constituents provide mechanistic support.

• schisandraTraditional

  In TCM, Schisandra is classified as entering the kidney meridian and is used to nourish kidney yin, secure essence, and address fatigue, frequent urination, and fluid regulation. This use is documented in the Shennong Bencao Jing and Bencao Gangmu. Preliminary animal studies suggest nephroprotective potential, but no human RCTs specifically for kidney function have been published.

• sheep's sorrelTraditional

  Fresh sheep's sorrel juice was traditionally recommended specifically for urinary and kidney diseases, and the plant has a documented diuretic role in folk medicine. However, the plant's own oxalate content is a documented risk for kidney stone formation in susceptible individuals.

• shepherd's purseTraditional

  Traditional use of shepherd's purse for kidney-related conditions including hematuria, kidney stones, renal edema, and kidney inflammation is documented across Chinese, Russian, North American Eclectic, and European traditions. Preclinical research has explored nephroprotective antioxidant properties. No human renal clinical trials exist.

• skullcapTraditional

  Native American tribes used S. lateriflora as a bitter tonic for the kidneys. TCM uses S. baicalensis for urinary conditions including painful urinary dysfunction. Both NIH LiverTox and multiple ethnobotanical sources document kidney-related traditional use.

• smartweedTraditional

  Kidney diseases are documented among the traditional ethnomedicinal indications for P. hydropiper across South and Central Asian folk medicine. The plant's diuretic classification and rutin content (nephroprotective constituent) support this association.

• solomon's sealTraditional

  The kidneys are documented as a target organ of Solomon's seal in Ayurvedic, TCM, and Iranian traditional medicine. TCM actions include 'tonifying the kidneys.' Traditional uses encompass kidney stones, gout, diuresis, and general renal support.

• squawvineTraditional

  Squawvine is documented in traditional herbal medicine for kidney and urinary disorders, consistent with its Cherokee/Iroquois ethnobotanical use as a diuretic. Chestnut School of Herbal Medicine specifically lists it for urinary and kidney disorders. No clinical evidence exists.

• sunflowerTraditional

  Sunflower seeds are traditionally classified as diuretic and have been used in TCM to detoxify the kidneys. Seed decoctions have been traditionally used for kidney inflammation. Sunflower seeds' nephrological benefits are also referenced in ethnomedicine but lack clinical trial substantiation.

• swertiaTraditional

  Swertia chirayita is used in traditional Ayurvedic and folk medicine for kidney and renal disorders. It is listed among conditions including kidney disease, urinary disorders, and blood purification in ethnopharmacological accounts. No peer-reviewed preclinical or clinical renal studies for Swertia alone have been identified.

• teaselTraditional

  In TCM, teasel root is one of the primary kidney-tonifying herbs, affiliated with the Kidney meridian and used for kidney yang and essence deficiency. European folk medicine also used teasel as a diuretic for kidney complaints. These are traditional applications with no human clinical evidence.

• terminaliaTraditional

  T. chebula is a component of the traditional Ayurvedic Triphala formula indicated for kidney dysfunction, and the Ayurvedic Pharmacopoeia of India documents its use for renal calculi and polyuria. Its bark is traditionally used as a diuretic. Animal data suggest antioxidant renoprotective activity in kidney tissue.

• tribulusTraditional

  Tribulus (Gokshura) is a classical Ayurvedic tonic for the kidneys, with documented antioxidant, anti-inflammatory, and antiurolithic effects in animal models. The plant is used for nephroprotection, kidney stone management, and renal function support across multiple traditional systems.

• varunaTraditional

  Varuna (Crataeva nurvala) is a classical Ayurvedic herb included in Sushruta Samhita under Varunadi Gana (herbs for urinary disorders) and has been used for kidney stone management, dysuria, and urinary tract infections for centuries. Preclinical studies confirm diuretic, anti-inflammatory, and anti-urolithiatic (anti-lithogenic) properties; in experimental models it has shown significant inhibition of bladder stone formation. Uncontrolled human studies have shown benefit for stone passage and symptomatic relief.

• watercressTraditional

  Watercress is traditionally used for kidney health, kidney stones, and urinary clearance across Iranian, European, and other medical traditions. Preclinical data show renoprotective effects (reduction in BUN, creatinine in CCl4 models). An RCT in hemodialysis patients showed improvements in antioxidant parameters and reduced BUN. Traditional medicine categorizes watercress as a kidney-cleansing diuretic herb.

• watermelonTraditional

  Watermelon has traditional use across multiple cultures as a kidney-supportive and diuretic food. Its citrulline is metabolized primarily by the kidneys, and its high water content supports urine production. Robust clinical evidence for direct kidney function improvement is lacking.

• wheat grassTraditional

  Animal studies show wheatgrass extract reduces serum creatinine and urea in diabetic models, indicating nephroprotective properties. Traditional and naturopathic use documents wheatgrass for kidney conditions. No human clinical trial has assessed kidney-specific outcomes.

• wood betonyTraditional

  Wood betony has traditional use for kidney health, including prevention of kidney stones, kidney pain, and as a diuretic. Gerard's Herball lists kidney stone treatment, and folk sources document diuretic-mediated kidney support.

• xanthium (cockleburs)Traditional

  The kidney and urinary tract represent a major traditional target for cocklebur (X. strumarium), documented in Southwestern US, South Asian, and Bangladeshi ethnomedicine. Diuretic activity has been confirmed in animal models. This use is balanced against documented nephrotoxicity at higher doses.