Vitamin D3 Explained: What It Is & How It Works in the Body
Evidence-based Vitamin D3, designed for real physiology
Vitamin D3, also known as cholecalciferol, is a fat-soluble nutrient essential for bone health, immune function, and overall physiological balance. Unlike many vitamins, vitamin D3 functions more like a hormone, influencing multiple systems throughout the body.
Learn more about Vitamin D3