What is the recommended dosage for Green Tea Extract (EGCG)?

General: 250-500 mg/day standardized to 50% EGCG; Equivalent: 3-5 cups green tea/day; Weight Management: 400-800 mg EGCG/day

What are the side effects of Green Tea Extract (EGCG)?

Potential side effects include: Nausea on empty stomach, Insomnia (caffeine content), Rare hepatotoxicity at high doses, Reduced iron absorption.

What is green tea extract and how may it support weight management?

Green tea extract is a concentrated form of Camellia sinensis leaves, rich in catechins, particularly EGCG. Clinical studies suggest it may modestly increase fat oxidation and energy expenditure. These statements have not been evaluated by the FDA, and this product is not intended to diagnose, treat, cure, or prevent any disease.

What dosage of green tea extract has been studied in clinical trials?

Clinical trials have typically used 250–500 mg of green tea extract standardized to contain 200–400 mg of EGCG per day. Studies generally lasted 8–12 weeks. Dosages above 800 mg EGCG daily have been associated with liver toxicity in some reports.

What are the potential side effects of green tea extract?

Common side effects include nausea, insomnia, and digestive discomfort, particularly on an empty stomach. High doses have been linked to liver injury in rare cases. Green tea extract contains caffeine, which may cause jitteriness, elevated heart rate, and sleep disturbances in sensitive individuals.

Green Tea Extract (EGCG)
Green Tea Extract (EGCG)

thermogenic

अन्य नाम: Epigallocatechin Gallate, EGCG, Camellia sinensis Extract, GTE

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About

A standardized extract from Camellia sinensis rich in epigallocatechin gallate (EGCG), one of the most extensively studied natural compounds for supporting thermogenesis and fat oxidation. Green tea extract has been reviewed in multiple Cochrane and systematic analyses for its role in supporting healthy body weight.

How It Works

Epigallocatechin gallate (EGCG) inhibits catechol-O-methyltransferase (COMT), prolonging norepinephrine signaling and increasing thermogenesis and fat oxidation. Also activates AMPK, which promotes fatty acid oxidation and inhibits lipogenesis in adipocytes.

Evidence For Conditions

स्वास्थ्य स्थिति	ग्रेड	अध्ययन	प्रतिभागी
Obesity	B	14	1500	देखें →
Abdominal Fat Reduction	B	8	600	देखें →
Exercise Performance for Weight Loss	C	6	300	देखें →
Weight Loss Plateau	C	5	300	देखें →

Side Effects

Nausea on empty stomach
Insomnia (caffeine content)
Rare hepatotoxicity at high doses
Reduced iron absorption

Drug & Supplement Interactions

Nadolol (reduced bioavailability)
Iron supplements (reduced absorption)
Blood thinners (theoretical)
Other stimulants (additive effects)

अपने स्वास्थ्य सेवा प्रदाता को आप जो भी सप्लीमेंट लेते हैं उनके बारे में हमेशा सूचित करें।

Related Ingredients

Caffeine Capsaicin Synephrine Forskolin

त्वरित तथ्य

खुराक: General: 250-500 mg/day standardized to 50% EGCG; Equivalent: 3-5 cups green tea/day; Weight_Management: 400-800 mg EGCG/day
रूप: capsule tablet powder liquid extract
प्राकृतिक स्रोत: Green tea, Matcha, White tea, Oolong tea
अधिकतम सीमा: 800 mg EGCG/day (hepatotoxicity risk above this; rare but documented)
सर्वोत्तम समय: With meals (reduces nausea risk); avoid on empty stomach; space from iron-containing foods/supp

साक्ष्य सारांश

Obesity B

Abdominal Fat Reduction B

Exercise Performance for Weight Loss C

Weight Loss Plateau C

FDA अस्वीकरण: इन कथनों का Food and Drug Administration द्वारा मूल्यांकन नहीं किया गया है। इस वेबसाइट पर उत्पादों और जानकारी का उद्देश्य किसी बीमारी का निदान, उपचार, इलाज या रोकथाम नहीं है। प्रस्तुत साक्ष्य ग्रेड प्रकाशित पीयर-रिव्यूड अनुसंधान के हमारे विश्लेषण पर आधारित हैं और चिकित्सा सलाह नहीं हैं। कोई भी सप्लीमेंट शुरू करने से पहले हमेशा अपने स्वास्थ्य सेवा प्रदाता से परामर्श करें।