The skin produces vitamin D, specifically vitamin D3 (cholecalciferol), when exposed to ultraviolet B (UVB) radiation from sunlight.
Vitamin D3 is synthesized from 7-dehydrocholesterol, a precursor found in the skin. When UVB rays penetrate the skin, they convert this precursor into vitamin D3. This process is essential for maintaining calcium levels in the body, which plays a vital role in bone health.
While vitamin D can also be obtained through certain foods, sunlight exposure remains the primary source. However, it's important to note that excessive sun exposure can lead to skin damage and other health risks. Therefore, it's crucial to balance sun exposure with protective measures like sunscreen and appropriate clothing.
