Overview

• An Advances in Nutrition analysis assessed 157 trials and 15 investigations on flavan-3-ols and cardiovascular biomarkers.
• The review recommends 400–600 mg daily, with a typical cup of tea providing about 160 mg.
• Evidence points to small improvements in systolic blood pressure along with total and HDL cholesterol and insulin–glucose dynamics.
• The guidance is food-based rather than a recommendation for supplements, with researchers calling for longer-term dosing and safety studies.
• Experts from the Tea Advisory Panel welcomed the findings and referenced prior research on improved endothelial function.