GNC Mega Men Energy & Metabolism Vitapak Program: Supports Heart and Sexual Health Achieve your daily nutritional goals with customized ingredients plus a multivitamin with more than 30 clinically studied ingredients. Men's Health: Contains a clinically studied multivitamin blend shown to work better than a basic multivitamin.^ Antioxidants: Packed with antioxidants to help fight free radicals that can be produced during intense exercise. Energy & Metabolism: Features a clinically studied thermogenic proven to boost energy and enhance calorie burning. Also provides nutrients to support physical endurance and energy production. Heart Health: Has EPA, which is important for cardiovascular and circulatory health and supports cholesterol and triglyceride levels that are already within the normal range. Sexual Health: Includes herbs that are traditionally used to support sexual health and L-arginine, which plays a role in sexual health.