Centrum Complete A-Z Multivitamins for Men is formulated with 24 essential vitamins and minerals to support the nutritional needs of men, including zinc to contribute to normal fertility. Complete multivitamin: Centrum Men contains 24 key vitamins and minerals. Supports energy release, immunity and contributes to muscle & heart health. B vitamins and iron to help support daily energy metabolism Product Size: 30 or 60 Tablets How to Use One to be taken daily. Warnings Always check with your doctor or pharmacist before taking this medicine. Side Effects May cause constipation. Contains: AMOUNT PER SERVING% DAILY VALUE Vitamin A 3,500 IU (29% as Beta-Carotene)70% Vitamin C 90 mg150% Vitamin D 1000 IU250% Vitamin E 45 IU150% Vitamin K 60 mcg75% Thiamin 1.2 mg80% Riboflavin 1.3 mg76% Niacin 16 mg80% Vitamin B6 2 mg100% Folic Acid 200 mcg50% Vitamin B12 6 mcg100% Biotin 40 mcg13% Pantothenic Acid 15 mg150% Calcium 150 mg15% Iron 8 mg44% Phosphorus 20 mg2% Iodine 150 mcg100% Magnesium 75 mg19% Zinc 11 mg73% Selenium 17 mcg24% Copper 0.5 mg25% Manganese 2.3 mg115% Chromium 35 mcg29% Molybdenum 50 mcg67% Chloride 72 mg2% Potassium 80 mg2% Boron 0 mcgN/A Nickel 5 mcgN/A Silicon 2 mgN/A Tin 10 mcgN/A Vanadium 10 mcgN/A Lycopene 600 mcgN/A