Evidence supporting the use of: Green tea
For the health condition: Crohn's Disease

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Synopsis

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

Green tea (Camellia sinensis) has been investigated for its potential benefits in inflammatory bowel diseases (IBD), including Crohn’s disease, primarily due to its high content of polyphenols such as epigallocatechin-3-gallate (EGCG). The scientific interest is based on green tea’s demonstrated anti-inflammatory, antioxidant, and immunomodulatory activities in a variety of laboratory and animal models. Preclinical studies have shown that EGCG can inhibit pro-inflammatory cytokines (such as TNF-α, IL-1β, and IL-6), suppress NF-κB activation, and reduce oxidative stress, all of which are relevant mechanisms in Crohn’s disease pathology.

In animal models of colitis, green tea extracts or EGCG supplementation have been shown to reduce disease severity, decrease mucosal damage, and limit inflammatory cell infiltration. However, while these findings are promising, clinical evidence in humans is limited. A few small pilot studies and case reports suggest that green tea or EGCG supplementation may help reduce inflammation and improve symptoms in some patients with IBD, but robust, well-controlled clinical trials in Crohn’s disease specifically are lacking.

Overall, while there is a scientific rationale and some preclinical support for the use of green tea in Crohn’s disease, current human research is insufficient to draw firm conclusions about its efficacy. Therefore, the evidence rating is low (2/5), and green tea should not replace standard therapies but might be considered as a complementary approach with physician supervision.

More about green tea
More about Crohn's Disease

Other health conditions supported by green tea

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
Breast Lumps
Cancer (natural therapy for)
Cancer (prevention)
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)
Fibroids (uterine)
Free Radical Damage
Fungal Infections
Glaucoma
Hemochromatosis
Irritable Bowel Syndrome
Parkinson's Disease
Perspiration (excessive)
PMS (general)
Polyps
Rosacea
Skin (oily)
Abdominal Pain
Abscesses
Body Odor
Cancer Treatment (reducing side effects)
Fatigue
Gastritis
Gingivitis
Hair (loss or thinning)
Headache (general)
Hypertension
Inflammation
Influenza
Liver Detoxification
Memory and Brain Function
Oral Surgery
Psoriasis
Stress
Triglycerides (high)
Ulcers
Urinary Tract Infections
Wrinkles