Relationship: Diabetes and green tea

Evidence supporting the use of: Green tea
For the health condition: Diabetes

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Synopsis

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

Green tea (Camellia sinensis) has been traditionally used for a variety of health purposes, but its use in diabetes management is primarily supported by modern scientific research, albeit with modest evidence. Green tea is rich in polyphenolic compounds, particularly catechins such as epigallocatechin gallate (EGCG), which have demonstrated antioxidant and anti-inflammatory properties in laboratory studies. Several animal and human studies suggest that green tea consumption may modestly improve glycemic control by enhancing insulin sensitivity, reducing fasting blood glucose, and lowering HbA1c levels.

A 2013 meta-analysis of randomized controlled trials found that green tea supplementation led to a small but statistically significant reduction in fasting blood glucose. However, the changes in HbA1c and fasting insulin levels were not significant. More recent reviews confirm these findings, indicating that the benefit is present but generally modest and not sufficient to replace standard diabetes treatments. The mechanisms proposed include the inhibition of digestive enzymes, reduction of carbohydrate absorption, and modulation of glucose uptake in tissues.

While green tea is generally safe for most adults when consumed in moderate amounts, its use should be considered as an adjunct to, rather than a replacement for, established diabetes therapies. Overall, the evidence supporting green tea’s role in diabetes management is promising but limited, warranting further high-quality, large-scale clinical trials.

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1-deoxynojirimycin
3-(4-hydroxy-3-methoxyphenyl)prop-2-enoic acid
4-hydroxyisoleucine
Abrus
Acai berry
Acemannan
Acetyl L-carnitine
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amaranth
amentoflavone
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ampelopsin
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anamu
andrographolide
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anemarrhena asphodeloides
Angelica
ankaflavin
annatto
anserine
anthocyanidins
anthocyanins
anthocyanosides
antirrhinin
Antrodia camphorata
apigenin
apocynin
apple cider vinegar
apricot
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arabinoxylan
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arctiin
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argan nut oil
arjun tree
arjuna
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arugula
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ashitaba
ashwagandha
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aspartame
astaxanthin
aster root
Asteraceae
astragalin
astragaloside
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atractylone
aucubin
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ginger
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gooseberry
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hemp
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hypsizygus marmoreus
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inositol phosphate
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isoflavones
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oat
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oyster mushroom
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Palatinose
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Palo Azul
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pyrroloquinoline quinone
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specialized pro-resolving mediators (SPMs)
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spinach
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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

Health Concerns

Brands

Evidence supporting the use of: Green tea
For the health condition: Diabetes

Table of Contents

Synopsis

Other ingredients used for Diabetes

Other health conditions supported by green tea

Products containing green tea

Health Concerns

Brands

Evidence supporting the use of: Green teaFor the health condition: Diabetes

Table of Contents

Synopsis

Other ingredients used for Diabetes

Other health conditions supported by green tea

Products containing green tea

Evidence supporting the use of: Green tea
For the health condition: Diabetes