Muscle Science Men Multivitamins & Minerals- Absolute Health, Absolute Immunity! When you are strong inside, it reflects outside. Vitamins and minerals are crucial for supporting various metabolic processes of your body. These micronutrients help in building up a staunch immune system. Their deficiency can lead to poor health and low energy levels. Bodybuilders, athletes, or active gym-goers are in dire need of these micronutrients as they are very likely to lose it while they sweat it out in intense training sessions. Their increased level of physical activity demands them to increase their micronutrient intake to have sound body functions.