Mega Daily One Plus from Scitec Nutrition is based on a formula with multi-vitamins (B, C, D), minerals and a total of 25 ingredients. BENEFITS Vitamin C. Contributes to the normal functioning of the immune and nervous systems and to the reduction of fatigue. Vitamin B2. Contributes to the maintenance of normal vision and normal red blood cells. Folic acid: Improves normal amino acid synthesis. Vitamin D3 (in an amount that constitutes 250% of the recommended daily dose). Helps maintain normal muscle function and the immune system, as well as the normal absorption/utilization of calcium and phosphorus. Zinc: Contributes to normal fertility, reproduction and the maintenance of normal testosterone levels. Magnesium: Contributes to the normal functioning of the nervous system. Selenium: Promotes normal spermatogenesis, normal thyroid gland function and the maintenance of normal hair and nails.