Vitamin D3, also known as cholecalciferol, is one of the most important members of the vitamin D family. It plays numerous vital roles in the body, including maintaining bone health, regulating the immune system, and reducing the risk of certain diseases.
The chemical formula for vitamin D3 is C27H44O. It is a fat-soluble vitamin that can be synthesized in the skin through exposure to ultraviolet B (UVB) rays from sunlight. Vitamin D3 can be obtained through sun exposure, diet, and dietary supplements.
A deficiency in vitamin D3 can lead to decreased bone density, an increased risk of fractures, and conditions such as rickets (in children) and osteomalacia (in adults). To ensure adequate intake of vitamin D3, one can choose foods rich in vitamin D3, such as oily fish, egg yolks, and beef liver, or opt for high-quality vitamin D3 dietary supplements.