Optimum Nutrition Opti-Men, Vitamin C, Zinc and Vitamin D, E, B12Features ON's Nutrient Optimization System for Active Men packs more than 75 active ingredients into a 3 tablet serving that you can take with one meal or spread across multiple meals throughout the day. In addition to essential vitamins and minerals, the formula includes a basic amount of plant extracts that can be harnessed through a healthy, balanced diet. Think of Opti Men as nutritional insurance for your fitness lifestyle Vitamin C, Vitamin D