Coffee Limit: రోజుకు ఎన్ని కప్పుల కాఫీ సురక్షితమో తెలుసా?
AHA study reveals most adults can safely consume up to 400 mg of caffeine (about 5 cups) daily. Black coffee without sugar or cream may reduce heart disease, stroke, and Type-2 diabetes risks. Experts warn against high-caffeine energy drinks. 2–4 cups daily is optimal.