Evidence supporting the use of: Green tea
For the health condition: Circulation (poor)

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Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Green tea (Camellia sinensis) is widely consumed for its potential health benefits, including effects on cardiovascular health and circulation. The primary active compounds in green tea are polyphenols, particularly catechins like epigallocatechin gallate (EGCG). Scientific studies have investigated green tea’s role in improving endothelial function, reducing oxidative stress, and lowering blood pressure—all of which are related to circulatory health.

Several clinical trials and observational studies suggest that regular green tea consumption may modestly improve endothelial function, which is crucial for healthy circulation. Some studies have shown that green tea can help lower blood pressure and reduce arterial stiffness, both of which contribute to improved blood flow. The proposed mechanisms include antioxidant effects, enhancement of nitric oxide production (which relaxes blood vessels), and anti-inflammatory properties.

However, while there is a plausible scientific basis and some supportive clinical evidence, the overall strength of the evidence is moderate to weak. Most studies report only modest improvements, and not all findings are consistent. Green tea is not considered a primary or standalone treatment for poor circulation, but it may offer supportive cardiovascular benefits as part of a healthy lifestyle. Therefore, its use for circulation is scientifically plausible but not strongly validated, warranting a rating of 2 out of 5 for evidence strength.

More about green tea
More about Circulation (poor)

Other ingredients used for Circulation (poor)

2-(nitrooxy)ethyl 2-amino-3-methylbutanoate
3-(4-hydroxy-3-methoxyphenyl)prop-2-enoic acid
Acetyl L-carnitine
Achyranthes
Adrenergic amines
Ajoene
algal oil
Allicin
Alliin
Allium tuberosum
alpha-linolenic acid (ALA)
alpha-lipoic acid
amino acids
AMP-activated protein kinase (AMPK)
Angelica
anthocyanidins
anthocyanins
anthocyanosides
antler
Aralia
arginine alpha ketoglutarate
Arginine aspartate
arginine creatine
Arginine nitrate
Arginine silicate
arjun tree
arjuna
arjunic acid
Aronia melanocarpa
ashitaba
ashwagandha
asparagus
astaxanthin
Asteraceae
astragaloside
astragalus
atractylodes
atractylone
Auricularia
Autumn elaeagnus
Bassia scoparia
bee products
beet
bergamot
berry
bilberry
bioflavonoids
biota seed
birch
bishop\'s weed
black cumin
black currant
black galingale
black garlic
black ginger
black pepper
black tea
blackboard tree
blueberry
Boerhavia diffusa
borneol
bromelain
Buckwheat
Buddha\'s hand
bupleurum falcatum
bur-reed
burdock
butcher's broom
Butea monosperma
Caesalpinia crista
caffeine
calycosin
capillary artemisia
capsaicin
capsaicinoids
capsicum
capsinoids
cardamom
carqueja
Carthamus
cat's claw
catecholamine
caterpillar mushroom
cayenne pepper
celery
Centella asiatica
Centella triterpenes
chen pi
cherry
chestnut
Chinese mountain ant
Chinese salvia root
Chinese silkvine
chocolate
chokeberry
cinnamaldehyde
Cinnamomum
cinnamon
cistanche
Citrus
citrus bioflavonoids
citrus sinensis (proprietary)
clove
coca
cocoa
Codonopsis
coenzyme Q10 (CoQ10)
cola nut
Coleus forskohlii
commiphora
cordyceps
costus
coumarin
cowherb
Curcuma
curcumen
curcumin
Curcuminoid
currant
cyanidin
d-alpha tocopherol
danshen
date
DHA (docosahexaenoic acid)
diallyl disulfide (DADS)
diallyl sulfide
diallyl trisulfide (DATS)
dioscorea
diosmetin
Diosmin
dismutase
dodder
dodeca-2E, 4E, 8Z, 10Z/tetraenoic acid isobutylamide
dong quai
dong quai root
Echium
eicosapentaenoic acid
eleuthero
elk antler
enzymes blend (proprietary)
EPA (eicosapentaenoic acid)
ephedrine
epicatechin
essential oil blend
Ethylenediaminetetraacetic acid (EDTA)
Eupolyphaga sinensis
European five-finger grass
evodiamine
Fagopyrum
fatty acids
fish oil
fish protein
flat-stem milk-vetch
flavanols
flavanones
flavans
flavoglycosides
flavones
flavonoids
flavonols
flavonones
flaxseed
fo-ti
forskolin
fruit
fruit and vegetable blend (proprietary)
fungus
ganoderma
garlic
garlic bulb
gastrodia
ginger
ginkgo biloba
ginkgo flavone glycoside
ginseng
Ginsenosides
Glycoside
goji berry
gooseberry
gotu kola
grape
green tea
greens blend (proprietary)
Gypenoside
hawthorn
hazelnut
heal-all
Herb Robert
herbal blend (proprietary)
hesperetin
hesperidin
hibiscus
horse chestnut
horseradish
Huang hua
hydroxytyrosol
Hygrophila
icariin
Ilex
Indian bael
Indian kinotree
Indian tinospora
inositol nicotinate
inula racemosa
iron
jiaogulan
knotweed
kola nut
kudzu
L-arginine
l-carnitine
L-citrulline
Ligusticum
Ligustrazin
lingzhi
long pepper
lovage
lumbrokinase
mace
magnesium
mandarin
maral root
Marine fat
Marine lipid
Mate
Mistletoe
Monacolin
Monounsaturated fat
Morinda
Moringa
Mountain Pepper
Mulberry
Mushroom
Mustard
mustard seed
Naringin
Nattokinase
Nettle
Niacin (vitamin B3)
Niacinamide (vitamin B3)
nicotinamide riboside
Nutmeg
Oleuropein
Oligomeric proanthocyanidins
olive
omega-3 fatty acids
onion
orange
Oxystelma
oyster mushroom
paeoniflorin
Pentacyclic triterpenoids
peony
Pepper
Phaeophyceae
Phenylpropanoids
Phthalides
pine bark
Piper chaba
Piper retrofractum
Piperine
Pistachio
policosanol
Polydatin
Polygonum
polyphenols
polyunsaturated fat
pomegranate
prickly ash
proanthocyanidins
procyanidin
procyanidol
Propionyl-L-Carnitine
Puerarin
punarnava
punicalagins
purslane
Pycnogenol
Pyrrosia
quercetin
reishi mushroom
resveratrol
rhizome
ribose
rockweed
Rosa roxburghii
rose hips
rosemary
Ruscogenins
Ruscus
rutin
Rutosides
S-allylcysteine
safflower oil
Salidroside
Salmon Oil
Salvianolic acid
saponins
sarsaparilla
Schisandrins
seaweed
Serrapeptase
sesame
Sete sangrias
shiitake mushroom
Shilajit
Shogaol
Sichuan Lovage
Sichuan pepper
Sickle-leaf hare's ear
siler root
smilax
Southern Tsangshu
Spatholobus
spinach
Sulfated polysaccharide
suma
Sumac
Sweet Orange alcohol
Szechuan lovage
Tanshinone
Taraxacum
Taxifolin
Taxillus chinensis
Tea
Terminalia
Theobromine
tocotrienols
Triphala
Triterpenes
Troxerutin
turmeric
ubiquinol
vegetable and fruit blend (proprietary)
vegetable blend (proprietary)
Vinburnine
Vincamine
vitamin B
vitamin E
Watercress
Watermelon
Withanolides
Wulinshen
Xanthone
Xanthophyll
Xantinol Nicotinate
Xylaria nigripes
Yerba mate
Yohimbe
Yohimbine
zanthoxylum
Zingerone
Zucchini

Other health conditions supported by green tea

Abdominal Pain
Abscesses
Acne
Addictions (coffee, caffeine)
Age Spots
Aging (prevention)
Allergies (food)
Allergies (respiratory)
Alzheimer's Disease
Antibiotics (alternatives to)
Anxiety
Anxiety Disorders
Appetite (excessive)
Arteriosclerosis
Arthritis
Asthma
Athletic and Exercise Aids
Autoimmune Disorders
Belching
Benign Prostate Hyperplasia
Bites and Stings
Bleeding (internal)
Blood in Urine
Bloodshot Eyes
Body Odor
Breast Lumps
Cancer (natural therapy for)
Cancer (prevention)
Cancer Treatment (reducing side effects)
Cardiovascular Disease
Cartilage Damage
Cellulite
Cervical Dysplasia
Chemotherapy (reducing side effects)
Chicken Pox
Cholesterol (high)
Cholesterol (low)
Chronic Obstructive Pulmonary Disorder
Circulation (poor)
Circulation (to the brain)
Cirrhosis of the Liver
Colds (antiviral)
Colds (decongestant)
Colds (general)
Colds (prevention)
Colds (with fever)
Colic (children)
Colitis
Colon (atonic)
Colon (spastic)
Concentration (poor)
Congestion
Congestion (bronchial)
Congestion (lungs)
Congestion (lymphatic)
Congestion (sinus)
Conjunctivitis
Constipation (adults)
Contagious Diseases
Convalescence
Cough (damp)
Cough (dry)
Cough (general)
Cough (spastic)
Cramps (menstrual)
Crohn's Disease
Cuts
Cystic Breast Disease
Cystic Fibrosis
Cytomealovirus
Dandruff
Debility
Dementia
Denture Sores
Depression
Dermatitis
Diabetes
Diabetic Retinopathy
Diarrhea
Digestion (poor)
Down Syndrome
Endometriosis
Epstein Barr Virus
Eye Infections
Eye Problems
Eyes (red or itching)
Fatigue
Fibroids (uterine)
Free Radical Damage
Fungal Infections
Gastritis
Gingivitis
Glaucoma
Hair (loss or thinning)
Headache (general)
Hemochromatosis
Hypertension
Inflammation
Influenza
Irritable Bowel Syndrome
Liver Detoxification
Memory and Brain Function
Oral Surgery
Parkinson's Disease
Perspiration (excessive)
PMS (general)
Polyps
Psoriasis
Rosacea
Skin (oily)
Stress
Triglycerides (high)
Ulcers
Urinary Tract Infections
Wrinkles

Products containing green tea

Vitabase Active Man's Formula
Metagenics AdvaClear
Metagenics AdvaClear
Metagenics Akkermansia Co.™ Healthy Weight with Glucose Control
Pure Encapsulations Athletic Nutrients
Metagenics Berberine GT
Douglas Laboratories CLA (Conjugated Linoleic Acid)
Metagenics Clear Change 10-Day Detox Program with UltraClear Plus Berry
Metagenics Clear Change 10-Day Detox Program with UltraClear Plus pH
Metagenics Clear Change 10-Day Detox Program with UltraClear Plus pH Pineapple Banana
Metagenics Clear Change 10-Day Detox Program with UltraClear Plus Pineapple Banana
Metagenics Clear Change 10-Day Detox Program with UltraClear Plus Vanilla
Metagenics Clear Change 10-Day Detox Program with UltraClear RENEW Berry
Metagenics Clear Change 10-Day Detox Program with UltraClear RENEW Vanilla
Metagenics Clear Change 28-Day Detox Program with UltraClear Plus Berry
Metagenics Clear Change 28-Day Detox Program with UltraClear Plus pH Pineapple Banana
Metagenics Clear Change 28-Day Detox Program with UltraClear Plus pH Vanilla
Metagenics Clear Change 28-Day Detox Program with UltraClear Plus Pineapple Banana
Metagenics Clear Change 28-Day Detox Program with UltraClear Plus Vanilla
Metagenics Clear Change 28-Day Detox Program with UltraClear RENEW Berry
Metagenics Clear Change 28-Day Detox Program with UltraClear RENEW Chai
Metagenics Clear Change 28-Day Detox Program with UltraClear RENEW Vanilla
Metagenics Clear Change Daily Essentials
Pure Encapsulations CurcumaSorb Mind
Designs For Health Detox Antiox™
Integrative Therapeutics Detoxication Factors
Integrative Therapeutics Detoxication Factors
Designs For Health Detoxification Support Packets
Douglas Laboratories DIM ® Enhanced
Douglas Laboratories DIM ® Enhanced
Designs For Health DopaBoost™
Pure Encapsulations DopaPlus
Metagenics Endefen® Powder
Designs For Health EndoTrim™
Metagenics EstroFactors®
Designs For Health FemGuard+Balance™
Thorne FiberMend
Vitabase Green Tea Extract
Pure Encapsulations Green Tea Extract Decaffeinated
Pure Encapsulations Green Tea Extract Decaffeinated
Thorne Green Tea Phytosome
Douglas Laboratories Hair Growth+
Metagenics Immune Active
Metagenics Immune Defense Pack
Designs For Health Immune Support Packets
Designs For Health Immunitone Plus™
Thorne L-Arginine Plus Perfusia Plus
Vitabase Life's Essentials Plus
Thorne MediClear Plus
Metagenics MetaGlycemX™
Metagenics MetaGlycemX
Thorne Multi-Vitamin Elite NSF
Thorne Multi-Vitamin Elite NSF
Thorne Ovarian Care
Designs For Health PaleoCleanse Plus™
Designs For Health PaleoCleanse Plus™
Designs For Health PaleoCleanse Plus™ Detox Program
Designs For Health PaleoCleanse Plus™Chocolate Detox Kit
Metagenics PhytoGanix® Tropical Fruit
Metagenics PhytoMulti™ Multivitamin
Metagenics PhytoMulti With Iron
Metagenics PhytoMulti Without Iron
Metagenics PhytoMultivitamin
Designs For Health Plant Protein Cleanse
Designs For Health Plant Protein Cleanse Plus™ 570g
Pure Encapsulations Polyphenol Nutrients
Pure Encapsulations Polyphenol Nutrients
Thorne PolyResveratrol-SR
Vitabase Prostate Complex (Formerly Prostate Complete)
Integrative Therapeutics ProThrivers Wellness Flav Complex
Pure Encapsulations SP Ultimate
Pure Encapsulations SP Ultimate
Pure Encapsulations Teavigo
Metagenics Testralin®
Metagenics Trancor®
Douglas Laboratories Ultra Preventive
Douglas Laboratories Ultra Preventive
Douglas Laboratories Ultra Preventive ®-EZ Swallow
Douglas Laboratories Ultra Preventive® X
Douglas Laboratories Ultra Protein Green
Metagenics UltraClear Plus® Detox Powder
Metagenics UltraClear Plus Detox Powder Berry
Metagenics UltraClear Plus Detox Powder Pineapple/Banana
Metagenics UltraClear Plus pH Detox Powder Pineapple/Banana
Metagenics UltraClear Plus pH Detox Powder Vanilla
Metagenics UltraClear RENEW Detox Powder Berry
Metagenics UltraClear RENEW Detox Powder Chai
Metagenics UltraClear RENEW Detox Powder Vanilla
Metagenics UltraMeal® Daily Support Dutch Chocolate
Metagenics UltraMeal Daily Support Mixed Berry
Designs For Health Weight Loss Support Packets
Metagenics Wellness Essentials Active Daily Packs
Metagenics Wellness Essentials Brain Health Daily Packs
Metagenics Wellness Essentials® Daily Packs
Metagenics Wellness Essentials Healthy Balance Daily Packs
Metagenics Wellness Essentials Men's Vitality Daily Packs
Metagenics Wellness Essentials Women's Daily Packs
Metagenics Wellness Essentials Women's Prime Daily Packs
Pure Encapsulations Women's Nutrients
Pure Encapsulations XanthiTrim