Orchid

Other Names

BassorinBlue butcherCuckoo flowerCullionsCynosorchisDactylorhiza hatagireaDead man's fingersDog's codsDogstonesEarly purple orchidEarly spring orchisFool's ballocksHimalayan marsh orchidJivakaKhasa AlthalabLevant SalepLong purplesMale orchidMarsh orchidMarsh orchisOrchidaceaeOrchisOrchis BouffonOrchis CasqueOrchis latifoliaOrchis laxifloraOrchis maculataOrchis maleOrchis masculaOrchis militarisOrchis morioOrchis morio var. masculaOrchis olivetorumOrchis pentecostalisOrchis speciosissimaOrchis wilmsiiRiddhiRishabhakaSachlavSahlabSahlab thakariSahlavSahlepSalabSalab GattaSalab MishriSalab MisriSalab PunjaSalabmishriSalam GattaSalam MisriSalam PanjaSalampanjaSalapSalepSalep orchidSalepiSaloopSatiriao-machoSatirionSatirion FemelleSatyrionSernikovotanoSpotted orchidThalab NarVriddhiWild orchid

Synopsis

Orchid (Orchidaceae): A Comprehensive Reference on Medicinal and Dietary Use

1. Identity and Botanical Classification

The term "orchid" as a dietary supplement does not refer to a single botanical species but to a broad array of members of the family Orchidaceae — one of the largest and most diverse families of flowering plants. Orchidaceae comprises approximately 29,000 accepted species across more than 800 genera, and this family accounts for about 8–10% of all flowering plants, distributed globally, with major diversity in tropical Asia, South America, and parts of Africa, thriving in ecosystems ranging from humid rainforests to alpine regions.

Several genera and species are of primary relevance in the context of dietary supplementation, traditional medicine, and phytochemical research. The most studied include:

Dendrobium — a genus of over 1,400 species; Dendrobium is a genus of flowering plants belonging to the Orchidaceae family with more than 1,400 species, and many Dendrobium species have been used as medicinal plants in several Asian countries for thousands of years. Particularly studied species include Dendrobium nobile Lindl., Dendrobium officinale Kimura et Migo, Dendrobium chrysotoxum, and Dendrobium fimbriatum.
Orchis / Dactylorhiza — terrestrial orchids of Europe, the Middle East, and the Himalayas. Salep is a flour made from the tubers of the orchid genus Orchis (including species Orchis mascula and Orchis militaris). Dactylorhiza hatagirea (D. Don) Soó is a potential orchid, commonly known as Hattajari and Salampanja, traditionally used by the natives of higher altitudes of the Himalaya for treating different ailments.
Gastrodia elata Blume — the dried tuber of Gastrodia elata (GE), a perennial orchid with a 2,200-year medicinal history documented in the Shennong Bencaojing (200 BCE), remains a cornerstone of traditional Chinese medicine (TCM) and contemporary integrative therapies across Asia.
Anoectochilus roxburghii — a perennial herb belonging to the genus Anoectochilus in the Orchidaceae family, distributed widely in subtropical regions, especially in the southern provinces of China; as a tonic with high value, it is also a well-known supplement throughout the world.
Gymnadenia conopsea — a perennial herbaceous orchid plant that grows widely throughout Europe and in temperate and subtropical zones of Asia; in China, its tuber has been used in traditional Chinese medicines, Tibetan medicines, Mongolian medicines, and other ethnic medicines.

The name "orchid" itself has ancient etymological roots. Greek people first identified this plant; based on nomenclature from 372–286 BCE, the generic name comes from "Orchis," meaning "the testicles" according to the Greek word, a reference to the paired, rounded tubers of terrestrial species. The genus name Dactylorhiza is derived from the Greek words daktylos (finger) and rhiza (root).

2. Natural Sources and Common Forms/Preparations

The plant parts used vary by genus and tradition. Tubers (corms or pseudobulbs), stems, and aerial parts are all utilized. The most commercially significant preparation derived from terrestrial orchid tubers is salep. Salep is a flour made from the tubers of the orchid genus Orchis; these tubers contain a nutritious, starchy polysaccharide called glucomannan. Tubers of wild orchids are washed, boiled, dried, and finally ground into flour for use in beverages, desserts, and food products. Turkish salep is sourced from around 30 different species of orchids falling into 8 genera such as Orchis, Anacamptis, Himantoglossum, and Dactylorhiza.

For Dendrobium species used in traditional Chinese medicine, the dried stem of Dendrobium officinale (Dendrobii officinalis) has been documented in the Chinese Pharmacopoeia for medicinal usage and is officially listed in "Medicine and Drug Homology," indicating that it may be suitable for long-term consumption. The development of orchids has resulted in several social benefits, promoting "green and natural" dietary options and daily essentials, including decoction pieces, oral liquids, beauty products, and skincare solutions. Anoectochilus roxburghii has multifarious commercial applications in health products, foods, and cosmetics; it is frequently used in food supplements and nutritional products, anti-aging and whitening cosmetics, and even as a raw material for fermentation and winemaking.

3. Traditional and Historical Use

3.1 Ancient Greek and Roman Traditions

The ancient Romans and ancient Greeks used ground orchid bulbs to make drinks, which they called by a number of names, especially satyrion and priapiscus; they considered it to be a powerful aphrodisiac. Pedanius Dioscorides, in his 1st-century CE pharmacopeia De Materia Medica, recommended grinding orchid tubers into a powder for consumption as an aphrodisiac, digestive aid, and treatment for ailments including ulcers and respiratory issues, attributing tonic properties to species like Orchis and Ophrys. Like many of the terrestrial orchids of Europe, legends emerged to explain and apply their shapes according to the "doctrine of signatures," which ascribes medicinal benefit applications based on the shape of the plant.

3.2 Ottoman and Middle Eastern Traditions (Salep)

During the Ottoman Empire, salep was a medicinal staple; there is evidence that salep was consumed in palaces of the Ottoman Empire as early as the 15th century. One of the most accurate written accounts of salep comes from Ottoman travel writer Evliya Çelebi who journeyed through the Ottoman Empire during the 17th century. During the 18th and 19th centuries, merchants brought salep to England, where it became known as "salop" or "salo," and it was considered luxurious and exotic.

In traditional medicine, salep has been prescribed for dressing and treating glottal inflammations and intestine disorders, tuberculosis, diarrhea, Parkinson's disease, cancer, and fever, and is especially used to strengthen sexual activity, for erectile dysfunction therapy, physical strength enhancement, and to increase vigor. Many ancients believed salep had healing powers including calming ulcers, clearing phlegm, preventing miscarriage, curing venereal diseases, warding off scurvy, and even righting drunkenness.

3.3 Indian Subcontinent: Ayurveda, Unani, and Himalayan Traditions

In India, the use of orchids in medicinal practices dates back to Vedic times. Dactylorhiza hatagirea finds wide use in Ayurveda, Siddha, Unani, and folk medicine in curing disorders of the circulatory, respiratory, nervous, digestive, skeletal, and reproductive systems, besides boosting the immune system to fight infectious diseases. As per published records, D. hatagirea is used for the treatment of amala pitta (gastritis), madhya bhangaasthi (bone fracture), jvara (fever), vajikarana (erectile dysfunction), haima (cold), bhishajyati (wound healing), and ayurdamah (nerve tonic).

Although widely used in the modern system of medicine, this plant has great application in the Amchi System of Medicine (Sowarigpa) to cure many disorders of the digestive, reproductive, circulatory, nervous, respiratory, and skeletal systems.

3.4 Traditional Chinese Medicine (TCM)

Dendrobium officinale was originally used as a tonic herbal medicine to treat stomach disorders and promote the secretion of body fluid in Chinese medicine. The Chinese Pharmacopeia lists two monographs of Dendrobium herb, Dendrobii Caulis (Shi Hu), including D. nobile Lindl., D. chrysotoxum Lindl., and D. fimbriatum Hook.; and Dendrobii Officinalis Caulis (Tiepishihu) for D. officinale Kimura et Migo.

Gastrodia elata Blume, the dry tuber of the orchid family, has a long history of medicinal use; it has the functions of calming the liver, relieving muscle spasms, and dispelling gas. In traditional Chinese medicine, Rhizoma Gastrodiae is mainly used for hypertension, headache, stroke, limb numbness, hemiplegia, and arthritis.

Anoectochilus roxburghii, known as Jinxianlian, is valued in many Asian countries and widely used as a treatment booster and medicine because of its various beneficial properties, most notably the curative effects of heat dissipation and cooling of blood, elimination of dampness, detoxification, and immunity enhancement.

4. Key Constituents and Active Compounds

4.1 Glucomannan (Salep Polysaccharides)

The main components of salep tubers are glucomannan and starch, both of which are carbohydrate derivatives. Glucomannan polysaccharide, which is composed of mannose and glucose, is the main component in orchid flour. Besides, salep contains different compounds such as nitrogenous substances, protein, particularly calcium, potassium, iron, chlorides and phosphates, and some trace levels of volatile oils, ferulic acid, quercetin, daucosterol, cirsilineol, and sterols. Glucomannan is a naturally occurring polysaccharide existing in certain plant species and fungi; due to its special properties, it has been widely applied in clinical settings to lower body weight and circulating cholesterol levels and to treat constipation, diabetes, and arterial sclerosis.

4.2 Dendrobium Alkaloids

More than sixty alkaloids have been isolated and identified from the Dendrobium genus. Alkaloids, predominantly nitrogen-containing compounds found in medicinal orchids, include over 140 types discovered across more than 50 species. The principal alkaloid is dendrobine: the representative alkaloid in the Dendrobium genus is dendrobine, which is based on the picrotoxane skeleton and has been found to exert inhibitory effects on various tumors. Dendrobine, isolated from Dendrobium nobile in the 1930s, stands out among various Dendrobium species' alkaloids for its significant therapeutic effects. Other identified alkaloids from D. nobile include nobilonine, dendroxine, dendrine, 6-hydroxydendroxine, 8-hydroxydendroxine, nobilomethylene, nordendrobine, and several others.

4.3 Dendrobium Polysaccharides

Polysaccharides are biopolymers composed of more than 10 kinds of monosaccharides and are one of the active ingredients in traditional Chinese medicines; the polysaccharides of Dendrobium nobile are one of the main active pharmacological ingredients of this plant. Dendrobium officinale polysaccharides (DOPs), the main bioactive constituent of this herbal medicine, interact with the gut microbiota to reshape microbial composition, restore intestinal barrier integrity, modulate mucosal immunity, and ultimately ameliorate metabolic disorders.

4.4 Bibenzyls, Phenanthrenes, and Flavonoids

The monographs in the Chinese Pharmacopeia specify dendrobine alkaloids for D. nobile and polysaccharides for D. officinale; various species may contain polysaccharides, alkaloids, and substantial aromatic compounds including bibenzyls, fluorenones, phenanthrenes, and sesquiterpenoids, and coumarins. More than 180 compounds have been isolated from D. officinale, including bibenzyls, phenols, phenylpropanoids, lignans, flavonoids, and polysaccharides. Erianin (from D. chrysotoxum) and moscatilin (from multiple species) are among the notable bibenzyl compounds.

4.5 Secondary Metabolites of Dactylorhiza

Secondary metabolites of Dactylorhiza hatagirea such as dactylorhins A–E, dactyloses A–B, and others exhibit a wide spectrum of pharmacological activities including antioxidant, antimicrobial, antiseptic, anticancer, and immune-enhancing activities. Previous studies on orchids have shown that they have a wide range of chemical and biochemical compounds including carbohydrates, flavonoids, alkaloids, glycosides, and other phytochemical contents, all of which have great importance in the medicinal field.

4.6 Gastrodin and Parishins (Gastrodia elata)

A systematic review of Gastrodia elata synthesized 100+ identified bioactive metabolites, including gastrodin and parishins, with insights into their pharmacokinetic behaviors and pharmacodynamic actions. Clinical studies on gastrodin have been carried out because of its definite therapeutic effect and high safety.

4.7 Kinsenoside (Anoectochilus roxburghii)

Kinsenoside is often used as an indicator for the quality control of Anoectochilus roxburghii and has received much attention in studies of its biological activity such as hyperglycemic, hypolipidemic, liver protection, and anti-inflammatory activities. Research on kinsenoside is gradually transitioning to new drug clinical research (National Medical Products Administration, 2023), indicating that the application of A. roxburghii has achieved further success.

4.8 Gymnadenia conopsea Constituents

More than 120 chemical compounds have been isolated from Gymnadenia conopsea, and the primary components are glucosides, dihydrostilbenes, phenanthrenes, aromatic compounds, and other compounds. G. conopsea and its active constituents possess broad pharmacological properties, such as tonifying effect, anti-oxidative activity, anti-viral activity, immunoregulatory, antianaphylaxis, antigastric ulcer, sedative, and hypnotic activities.

5. Mechanisms of Action

5.1 Immunomodulation

The polysaccharides from Dendrobium exhibit immunomodulatory and hepatoprotective activities; the alkaloids are antioxidant, anticancer, and neuroprotective, while other compounds display anti-angiogenesis, anti-cytotoxicity, and anti-mutagenesis effects. The constituents and linkage with monosaccharides in the medicinal plant determine the bioactivity of the polysaccharides in immunomodulatory, anti-inflammatory, antioxidant, antitumor, and antidiabetic effects.

5.2 Antidiabetic Pathways

The types of compounds showing antidiabetic activities include polysaccharides, phenanthrenes, stilbenes, bibenzyl, polyphenols, and indolizidine alkaloids; most of the compounds showing antidiabetic effects are polysaccharides. The signaling mechanisms of Dendrobium in treating diabetes may involve the regulation of AMPK-GLUT4-PPARα; cAMP-PKA and Akt/FoxO1; cRaf-MEK1/2-ERK1/2; IRS1-PI3K-Akt-FoxO1/GSK3β; MAPK; and NF-κB pathways.

5.3 Neuroprotective and Anti-inflammatory Mechanisms

Dendrobium alkaloids can alleviate neurodegenerative diseases by protecting nerve cells from apoptotic damage. The total alkaloids extracted from D. nobile (DNLA) and its representative compound dendrobine have shown significant effects in blood glucose regulation, neuroprotection, and anti-tumor activity. In the case of Gastrodia elata, many compounds have biological activities such as sedation and hypnosis, anticonvulsion, improvement of learning and memory, protection of neurons, antidepressive effects, lowering of blood pressure, promotion of angiogenesis, protection of cardiomyocytes, antiplatelet aggregation, anti-inflammatory activity, and amelioration of labor pains.

5.4 Hepatoprotective Mechanisms

Clinical and laboratory investigations demonstrate significant improvement in liver function among patients treated with Dendrobium nobile; network pharmacology identified key targets such as PPARG, IL6, TNF, IL1B, and AKT1, and dendrobine significantly reduced ALT and AST levels in palmitic acid-treated HepG2 cells, indicating hepatoprotective properties and amelioration of oxidative stress.

5.5 Gut Microbiota Modulation

Dendrobium officinale polysaccharides interact with the gut microbiota to reshape microbial composition, restore intestinal barrier integrity, modulate mucosal immunity, and ultimately ameliorate metabolic disorders; DOPs have significantly improved metabolic indicators related to diabetes by regulating intestinal microbiota.

6. Scientific Evidence by Area of Use

6.1 Antidiabetic Effects

Dendrobium is one of the most frequently used medicinal herbs for treating diabetes in TCM clinical practices. The scientific evidence, however, is predominantly preclinical. Animal studies and cell-based studies have summarized Dendrobium's hypoglycemic effects. In D. officinale, the compound 3,4-dihydroxy-4′,5-dimethoxybibenzyl showed α-glucosidase and α-amylase inhibition as well as radical scavenging activity; three compounds were reported as α-glucosidase inhibitors and one as an α-amylase inhibitor.

Although Dendrobium officinale has a long history of being used as formulations in folk medicine, clinical study about its individual effects on human health is still scarce and limited; more detailed and large-scale clinical trials are warranted to assess its bioactivities and therapeutical effects on different diseases. Despite the diverse pharmacological activities of sesquiterpenoids in Dendrobium, there are still few reports on clinical applications and mechanistic studies; the specific mechanism of action remains unclear, and in some cases, pharmacological activity may only be observed at high doses of Dendrobium extracts in clinical applications; detailed and large-scale clinical studies are necessary to provide sufficient evidence of drug efficacy and patient safety.

Evidence strength: Predominantly animal and in vitro; human clinical evidence is limited and preliminary.

6.2 Antioxidant Activity

High total phenol and total flavonoid content along with high DPPH and ABTS scavenging activity have been documented in multiple orchid species; methanolic extracts showed better scavenging activity in DPPH and ABTS assays. In salep orchid species specifically, studies evaluated the secondary metabolites, total phenolic and flavonoid contents, antioxidant, and antimicrobial activities of salep orchids including Anacamptis morio, Anacamptis pyramidalis, Neotinea tridentata, Ophrys mammosa, Ophrys lutea, and Ophrys speculum, using DPPH free radical scavenging assay to determine antioxidant capacity.

Evidence strength: Primarily in vitro; mechanistic basis established but clinical relevance unconfirmed in humans.

6.3 Anticancer Activity

Many bioactive compounds isolated from orchid plants such as Dendrobium longicornu, Dendrobium transparens, Rhynchostylis retusa, Vanda cristata, and Anoectochilus formosanus possess anticancer activities via modifying the biotransformation of potential carcinogens by xenobiotic-metabolizing enzymes, alteration of hormone synthesis, inhibition of cancer cell proliferation, suppression of protein expression, impeding of cell cycle, and impairment of cell growth.

The representative alkaloid dendrobine, based on the picrotoxane skeleton, has been found to exert inhibitory effects on various tumors; the primary anti-tumor mechanism of dendrobine involves inhibiting the activation of proto-oncogenes and increasing the expression of oncogenes, thus suppressing the abnormal proliferation and differentiation of cells. Dendrobine, by targeting JNK stress signaling, enhances cisplatin toxicity in vivo during chemotherapy for non-small cell lung cancer cells.

According to available data, many species of orchids contain potential antitumor chemicals; however, the bioactive substances in a relatively insignificant number of orchids are identified, and most studies are on Asian taxa; broader research on American and African species and the correct identification of samples included in experiments are essential for evaluating the usefulness of orchids as a plant family with vast anticancer potential.

Evidence strength: In vitro and animal models only; no human clinical trials for anticancer applications reported in the sources reviewed.

6.4 Neurological Effects

Gastrodia elata, initially prescribed for neurological disorders (e.g., epilepsy, stroke prophylaxis) and hypertension, has modern research expanding its therapeutic portfolio to include anti-aging, antitumor, and osteoprotective applications. This medicinal orchid has various pharmacological activities such as sedation, hypnosis, intelligence enhancement, anti-epileptics, analgesics, neuroprotective drugs, anti-depressants, cardiovascular protection, and immune enhancement; a number of studies have exhibited a strong potential for combating Alzheimer's and Parkinson's disease.

Clinical studies on gastrodin have been carried out because of its definite therapeutic effect and high safety. However, although many traditional uses of this plant have been confirmed, it is necessary to continue to study the relationship between its structure and function, clarify the mechanisms of pharmacological effects, and explore new clinical applications so as to better delineate the quality control standards for Gastrodia elata.

Evidence strength: Preclinical studies are substantial; some clinical work has been done on gastrodin specifically, but broad clinical trials on whole preparations are limited.

6.5 Gastrointestinal and Hepatoprotective Effects

Dendrobium officinale exhibits various biological functions such as cardioprotective, anti-tumor, gastrointestinal protective, anti-diabetes, immunomodulatory, anti-aging, and anti-osteoporosis effects, and these traditional applications are consistent with modern pharmacological studies. D. officinale is recognized as a health-promoting food in China and other South Asian countries due to its pharmacological effects, including anti-diabetic activity, radical scavenging, immunomodulation, tumor suppression, promotion of neurite outgrowth, promotion of colonic health, activity against liver injury, and anti-inflammatory activity.

Evidence strength: Predominantly preclinical; consistent mechanistic evidence, but large-scale human clinical evidence is lacking.

6.6 Reproductive and Aphrodisiac Claims

The use of D. hatagirea as a dietary supplement was found to be beneficial in increasing testosterone levels, resulting in improved sexual desire and arousal. This claim, however, is based on traditional use and limited preclinical data. Most famous historically is the use of the tubers of the genus Orchis to treat issues of masculinity and male fertility. Salep, part comfort food and part medicine, is a popular folk remedy for everything from stomachache to impotence.

Evidence strength: Traditional/historical only for most species; preclinical data available for D. hatagirea; no rigorous randomized controlled human trials identified in the reviewed sources.

6.7 Antimicrobial Activity

In one study, extracts from plant and tuber parts of eight different epiphytic orchids harvested from the north of Turkey were checked for their antimicrobial properties against some pathogenic Gram-positive, Gram-negative bacteria and fungi species. Orchids are widely used in traditional medicine for the treatment of a whole range of different health conditions, including for their spasmolytic and anti-inflammatory activities.

Evidence strength: In vitro antimicrobial screening data available; no human clinical trial data found in reviewed sources.

7. Body Systems and Health Areas Associated with Orchid Use

Based on the literature, orchid-derived preparations have been studied or traditionally applied across the following body systems:

Endocrine/Metabolic: Blood glucose regulation, antidiabetic effects, lipid modulation (primarily Dendrobium spp. and A. roxburghii).
Nervous System: Sedation, hypnosis, anti-epileptic, neuroprotection, memory enhancement, anti-depression (Gastrodia elata, Dendrobium spp.).
Gastrointestinal System: Gastric protection, colonic health, promotion of digestive fluid secretion (Dendrobium officinale, salep).
Hepatic System: Hepatoprotection, liver injury mitigation (Dendrobium spp., A. roxburghii).
Cardiovascular System: Cardioprotective effects, blood pressure modulation (Gastrodia elata, Dendrobium officinale).
Immune System: Immunomodulatory activity via polysaccharides (Dendrobium spp., D. hatagirea).
Reproductive System: Aphrodisiac properties, testosterone modulation (historically Orchis spp., D. hatagirea).
Musculoskeletal System: Bone fracture healing, anti-osteoporosis effects (D. officinale, D. hatagirea).
Respiratory System: Salep is mainly sold by street vendors during winter as a remedial hot beverage for cold and cough in Turkey, Greece, Iran, Iraq, and Albania.

8. Dosage Forms and Reported Dosages

Dosage information is heterogeneous and species-specific in the peer-reviewed literature. The following have been explicitly reported in sources:

Salep flour (beverage): It can take as many as 13 orchid bulbs to make one cup of traditional salep beverage; the flour is typically boiled with milk and sugar for traditional preparation.
Dactylorhiza hatagirea powder in food applications: In an experimental food study, Dactylorhiza hatagirea powder was added at the rate of 0%, 1%, 2%, 3%, and 4% levels to ice cream.
D. hatagirea extract (neuropharmacological animal study): Neuropharmacological activities were examined by thiopental sodium–induced sleeping time in mice at doses of 100, 200, and 300 mg/kg body weight (p.o.); all the extracts exhibited significant reduction of onset and duration of sleep in the thiopental sodium–induced sleeping time test, with results suggesting that hydroalcoholic extracts of D. hatagirea roots possess potent hypnotic properties.
Dendrobium officinale (general clinical use): D. officinale has been widely consumed as a food supplement to enhance body health for hundreds of years. Specific human dosage values are not uniformly reported in the reviewed clinical literature.

Dendrobium is considered safe and well tolerated at the recommended dose, as no side effects had been reported in clinical trials. Reviewers note, however, that standardized, validated dosing protocols for most orchid-derived supplements remain to be established through rigorous clinical trials.

9. Safety Considerations and Notable Interactions

9.1 General Safety Profile

Dendrobium officinale, as a natural plant product, poses little toxicity and side effects to human health and could combine with other herbal medicines in Chinese medicine decoctions for treatment of diseases; since present chemical drugs and therapy can cause side effects in patients, it is essential to develop natural-derived drugs and adjuvant supplements with fewer side effects. Although Dendrobium officinale has been used for a long time in folk medicine, detailed and large-scale clinical studies are still warranted to demonstrate the pharmacological effects and mechanisms in humans; more investigations combining different modern technologies are needed for better control of the quality and safety of Dendrobium officinale.

9.2 Gaps in Toxicological Data

The presence of unique phytochemicals in orchids offers promising avenues for novel drug development; yet, limited pharmacological and toxicological data on their effects in humans underscore the urgent need for further scientific exploration and sustainable conservation of these valuable plants.

9.3 Species Authentication and Adulteration Risk

In actual circumstances, active constituents present in the Orchidaceae family are not so fully explored. One study analyzed salep powder purchased in 12 different Iranian cities and found that most came from the genus Orchis (34%), with Anacamptis (27%) and Dactylorhiza (19%) the next most common, indicating that products marketed as "salep" may contain material from multiple different orchid species, which may not have equivalent chemical profiles or safety data.

9.4 Conservation Status and Legal Restrictions on Wild-Harvested Material

The safety conversation around orchid supplements extends importantly to the legality and sustainability of source material. Almost all members of the Orchidaceae family are listed in Appendix II of CITES. The endangered and extinct species are listed in Appendix I, where the trade of wild plants is strictly prohibited; however, the trade of cultivated and artificially propagated plants is allowed with proper authorization.

An increase in consumption of salep is causing local extinctions of orchids in parts of Greece, Turkey, and Iran. It is estimated that each year in Turkey, 30 tons of tubers from 38 species are harvested; it takes from 1,000 to 4,000 tubers to make a kilogram of flour. For Himalayan species, incessant overexploitation of D. hatagirea has resulted in the dwindling of its populations in the wild, which has resulted in its classification as a critically endangered plant species; efforts involving mass reproduction through in vitro (tissue culture) and in vivo (vegetative propagation) means are currently being made to maintain its germplasm.

Dactylorhiza hatagirea's inherently slow growth, high habitat specificity, dependency on pollinators, need for mycorrhiza for reproduction and germination, narrow range of ecological substitution options, unsustainable exploitation, and climate change are major challenges for the growth and development of this orchid.

9.5 Evidence Limitations and Overall Assessment

The overall evidentiary landscape for orchid-derived supplements across all genera is characterized by a strong historical and ethnobotanical record, a growing body of in vitro and animal-model pharmacological data, but a comparatively thin foundation of rigorous human clinical trials. The active substances in traditional Chinese medicine are the material basis for their pharmacological effects; the identification and analysis of secondary metabolites are necessary prerequisites for the development and application of medicinal orchids' active substances; in a 2023 review, 155 secondary metabolites from medicinal orchids were identified for the first time between 2018 and 2023, including alkaloids and phenanthrenes. This continued pace of discovery underscores how much remains to be established before clinical applications can be formally validated.

References

Health Conditions

Health conditions that Orchid may help support.

No conditions available.

Body Systems

Body systems that Orchid may help support.

No body systems available.