Vitamin D is crucial for bone health, as it helps the body absorb calcium and maintain strong bones. It also plays a role in immune system function, reducing the risk of infections and autoimmune diseases. The body produces vitamin D when the skin is exposed to sunlight, but dietary sources are also important. Foods rich in vitamin D include fatty fish (salmon, tuna, mackerel), eggs, and fortified dairy products (milk, cheese, yogurt). Some plant-based sources, such as fortified cereals and mushrooms, also provide vitamin D. A deficiency in vitamin D can lead to weak bones, muscle pain, and an increased risk of osteoporosis. People who get limited sun exposure should ensure they consume enough vitamin D through their diet or supplements to maintain overall health.
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