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Green Tea Extract (EGCG) — Frequently Asked Questions

This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer

Frequently Asked Questions

How much weight can I lose with green tea extract?

Clinical trials show modest weight loss of 1-2 kg over 12 weeks beyond what diet alone achieves. This is not dramatic, but combined with exercise and calorie control, green tea extract provides a consistent thermogenic boost. The combination with caffeine and exercise amplifies results.

Is green tea extract safe for the liver?

At standard doses (400-500 mg EGCG/day), green tea extract is safe for most people. Rare liver injury reports are associated with high-dose (>800 mg EGCG) fasted supplementation. To minimize risk: stay under 800 mg EGCG/day, take with food, and avoid combining with other hepatotoxic substances.

Should I take green tea extract with or without caffeine?

Studies show EGCG + caffeine is more effective for fat oxidation than EGCG alone. If you tolerate caffeine well, choose a formula that includes both. If caffeine-sensitive, decaffeinated EGCG still provides benefits, just slightly less thermogenic effect.

Full Green Tea Extract (EGCG) Guide

References

  1. (). Green tea for weight loss and weight maintenance in overweight or obese adults. Cochrane Database of Systematic Reviews. DOI
  2. (). Efficacy of a green tea extract rich in catechin polyphenols and caffeine in increasing 24-h energy expenditure and fat oxidation in humans. American Journal of Clinical Nutrition. DOI