NutraBio Vitamin D (5000 IU) provides a potent dose of Vitamin D3 (as cholecalciferol), a crucial fat-soluble vitamin that is naturally present in only a few food sources. Vitamin D3 is essential for various bodily functions, ranging from promoting bone health to enhancing immune system performance.

Our Vitamin D3 supplement mirrors the form of Vitamin D3 produced by the body when exposed to ultraviolet (UV) sunlight, ensuring you receive Vitamin D in its most natural and effective state. This formulation is designed to be more than three times as effective as other forms of Vitamin D3 in raising and maintaining Vitamin D concentrations in the bloodstream for an extended period.