gnc mega men energy metabolism 90 caplets gnc clinically studied multivitamin - gives energy - provides calorie burning - contains antioxidants more antioxidant power than ever and over 30 clinically studied ingredients in every formula - all in smaller, easier-to-swallow pills.men's healthcontains a clinically studied men's multivitamin formula shown to work better than a basic multivitamin. helps support colon and prostate health.*energy shown to improve levels of key b vitamins essential for energy production.*calorie burning contains a combination of thermogenic ingredients that may support calorie burning and mental sharpness.*antioxidants packed with antioxidants to help fight free radicals that can be produced during intense exercise.*