Secrets of Vitamin D: A Comprehensive Review
Vitamin D is an essential nutrient that plays a crucial role in various aspects of human health. It is unique because it can be synthesized by the body through exposure to sunlight, as well as obtained from certain foods and supplements. In this comprehensive review, we will explore the secrets of vitamin D, including its sources, functions, benefits, deficiency risks, and optimal levels. Sources of Vitamin D: Sunlight: When the skin is exposed to sunlight, it synthesizes vitamin D3 (cholecalciferol) from cholesterol. Diet: Some food sources naturally contain vitamin D, such as fatty fish (salmon, mackerel), cod liver oil, and egg yolks. Additionally, fortified foods like milk, orange juice, and cereals often contain added vitamin D. Forms of Vitamin D: Vitamin D3 (cholecalciferol): Synthesized in the skin and also found in animal-based food sources. Vitamin D2 (ergocalciferol): Derived from plant-based sources or fungal sources like mushrooms. Functions and Benefits of Vit...