About Green Tea Extract
Green tea extract, derived from Camellia sinensis, is a concentrated source of polyphenols, primarily catechins, with EGCG being the most studied. It's used for its potential antioxidant, cardiovascular, weight management, and cognitive benefits. While generally safe for most, potential side effects such as caffeine-related issues and gastrointestinal upset can occur. Rarely, liver toxicity has been reported. Dosage considerations are important, typically ranging from 250-750mg daily, and consulting a healthcare professional is advised, particularly for those with pre-existing health conditions.
Key Information
Compare All Forms
Compare different forms of Green Tea Extract by bioavailability, conversion rates, and active ingredient content:
| Form | Tier | Steps |
Green Tea Extract Active Compounds (mg) |
Bioavailability | Action |
|---|---|---|---|---|---|
| Green Tea Extract (Camellia Sinensis) | Tier 2 | 1 | — | Moderate bioavailability form. Reliable form that works well but requires 1-2 step conversions by the body. Good balance of cost and effectiveness. | View → |
| Green Tea Extract (Topical) | Tier 2 | 1 | — | Moderate bioavailability form. Reliable form that works well but requires 1-2 step conversions by the body. Good balance of cost and effectiveness. | View → |
Scientific Evidence
Numerous studies have investigated the effects of green tea extract. Key studies include those examining its antioxidant properties (e.g., research on EGCG's scavenging abilities), cardiovascular effects (e.g., studies on blood pressure and cholesterol), weight management potential (e.g., research on thermogenesis and fat oxidation), and cognitive benefits (e.g., studies on memory and attention). However, further research is needed to fully understand its long-term effects and optimal dosage.