What It Is
Green tea extract is one of the most studied and widely used ingredients in weight loss supplements. Rich in catechins and caffeine, it has been shown to support metabolism and fat oxidation.
How It May Help
Green tea extract works primarily through its catechin content, particularly EGCG. It creates a synergistic effect with caffeine that enhances thermogenesis and fat burning.
Scientific Evidence
Multiple studies have demonstrated green tea extract effectiveness. A meta-analysis in the International Journal of Obesity found that green tea catechins significantly decreased body weight.
Safety & Side Effects
Generally safe for most adults. May cause mild side effects including nausea, constipation, or stomach discomfort. Those sensitive to caffeine should use cautiously.
Who Should Avoid
People sensitive to caffeine, those with liver conditions, pregnant or breastfeeding women.