What it’s for
- Marketed for metabolic or antioxidant effects
A concentrated tea extract, often containing EGCG and sometimes caffeine.
Purpose, evidence and practical considerations.
A concentrated extract differs from brewed tea. Broad wellness claims remain uncertain, while liver injury is a documented risk, particularly with high exposure and fasting use.
Confidence: moderate
Concentrated green tea extract can cause hepatocellular liver injury, with risk influenced by EGCG dose, fasting, duration, and individual susceptibility. Avoid empty-stomach dosing and stop for jaundice, dark urine, severe fatigue, or abdominal pain while seeking medical advice.
Concentrated green tea extract delivers catechins, especially EGCG, at exposures that can be much higher than brewed tea. Human lipid effects are small, while liver-injury risk is an established safety concern for concentrated extracts.
Regulatory status: dietary supplement
How people use it, with their schedules, context and original sources.
one of the two G components in his AGG stack
Green tea extract is listed as an ingredient or component in these reviewed interventions.
These share a protocol with this intervention. This does not establish that they work together or are suitable alternatives.