what vitamin does the sun give

The sun helps your body produce vitamin D, often called the “sunshine vitamin.” When skin is exposed to ultraviolet B (UVB) rays, 7-dehydrocholesterol converts to vitamin D3, which is then processed in the liver and kidneys into the active form the body uses. This makes vitamin D essential for calcium absorption and bone health, and it may also influence immune function and several other body systems. While sun exposure is a natural source, factors such as skin type, latitude, season, time of day, and sunscreen use affect how much vitamin D your skin can synthesize, so for many people dietary sources or supplements are important, especially in winter or at higher latitudes. If aiming for sun-derived vitamin D, a common practical approach is short, regular midday sun exposure on a large enough area of skin (for example, face, arms, or legs) several times a week, while avoiding sunburn. For precise needs, consider personal factors and consult a healthcare provider.