Do Black Coffee & Green Tea Burn Fat? Caffeine & EGCG Science Explained
Caffeine and green tea catechins (EGCG) transiently boost resting energy expenditure by 3%–8% (~50–80 kcal/day) and mobilize free fatty acids. Their biggest real-world benefit is ergogenic: drinking black coffee 45 minutes before training lowers perceived exertion so you lift heavier and walk further.