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

General: 250-500 mg/day EGCG; Via Tea: 3-5 cups/day

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

Potential side effects include: Liver toxicity at high doses (>800 mg EGCG/day), Insomnia (caffeine content), Gastrointestinal discomfort, Iron absorption reduction.

What is Green Tea Extract?

Green tea extract is rich in polyphenols, particularly epigallocatechin gallate (EGCG), and contains L-theanine and small amounts of caffeine. These compounds have been studied for their potential neuroprotective, anti-inflammatory, and cognitive-enhancing effects.

What dosage of Green Tea Extract has been used in cognitive studies?

Cognitive studies have used 250 mg to 500 mg of green tea extract daily, typically standardized to contain 50% or more EGCG. Some studies have used higher doses. Decaffeinated versions are available for those sensitive to caffeine. Consult your healthcare provider.

What are the potential side effects of Green Tea Extract?

Green tea extract is generally safe at moderate doses. High doses of EGCG (above 800 mg) have been associated with liver toxicity in rare cases. Caffeine content may cause insomnia, anxiety, or digestive issues. Consult your healthcare provider, especially if you have liver conditions.

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

polyphenol

Noto anche come: EGCG, Epigallocatechin Gallate, Camellia sinensis Extract

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About

EGCG (epigallocatechin gallate) crosses the blood-brain barrier, inhibits beta-amyloid aggregation, and provides antioxidant neuroprotection. Epidemiological data strongly associates regular green tea consumption with reduced cognitive decline risk.

How It Works

EGCG crosses the blood-brain barrier; inhibits beta-amyloid aggregation and tau phosphorylation; modulates dopaminergic and serotonergic pathways; enhances alpha brainwave activity.

Evidence For Conditions

Condizione	Grado	Studi	Partecipanti
Oxidative Stress & Neuroinflammation	C	10	800	Visualizza →

Side Effects

Liver toxicity at high doses (>800 mg EGCG/day)
Insomnia (caffeine content)
Gastrointestinal discomfort
Iron absorption reduction

Drug & Supplement Interactions

Iron supplements (tannins reduce absorption)
Nadolol (reduces blood levels)
Blood thinners (mild antiplatelet effect)
MAO inhibitors (caffeine interaction)

Informare sempre il proprio medico di tutti gli integratori che si assumono.Informate sempre il vostro medico di tutti gli integratori che assumete.

Related Ingredients

Blueberry Extract

Informazioni rapide

Dosaggio: General: 250-500 mg/day EGCG; Via_Tea: 3-5 cups/day
Forme: capsule tablet powder tea
Fonti naturali: Green tea, Matcha, White tea
Limite massimo: 800 mg/day EGCG from supplements (hepatotoxicity risk above)
Momento migliore: Between meals; avoid on empty stomach

Riepilogo delle evidenze

Oxidative Stress & Neuroinflammation C

Avvertenza FDA: Queste affermazioni non sono state valutate dalla Food and Drug Administration. I prodotti e le informazioni presenti su questo sito web non sono destinati a diagnosticare, trattare, curare o prevenire alcuna malattia. I gradi di evidenza presentati si basano sulla nostra analisi della ricerca pubblicata e sottoposta a revisione paritaria e non costituiscono consulenza medica. Consultate sempre il vostro medico prima di iniziare qualsiasi regime di integrazione.