Vitamin D3, also known as cholecalciferol, is a fat-soluble vitamin that plays a crucial role in various bodily functions. It is unique among vitamins because it can be produced by the body when the skin is exposed to sunlight. It can also be obtained through certain dietary sources and supplementation.
One of the primary functions of vitamin D3 is its involvement in maintaining healthy bones and teeth. It helps regulate the absorption of calcium and phosphorus from the intestines, which is essential for bone mineralization and overall bone health. Vitamin D3 also plays a role in muscle function, immune system regulation, and cell growth and differentiation.
