The mineral magnesium is required for the manufacture of bone and cells, the relaxation of muscles, activating B vitamins, protein and fatty acid... FSC 500mg Magnesium Capsules are a dietary supplement containing a high dose of magnesium, a mineral essential for many bodily functions. Magnesium contributes to muscle and nerve function, energy production, and bone health. It may also help reduce tiredness and fatigue. Each capsule provides 500mg of magnesium for comprehensive daily support. High potency magnesium: Each capsule delivers 500mg of magnesium. Supports muscle and nerve function: Magnesium plays a crucial role in proper muscle and nerve function.