The main source of vitamin D is production of vitamin D in the skin afterexposure to sunlight.Ultraviolet B rays from the sun convert a substance derived from cholesterol in the skin to cholecalciferol (vit D3), which, is in two steps (in the liver and then in the kidneys), converted ...
UVB light is very biologically active in that it is what helps the body produce vitamin D3. Vitamin D is a fat-soluble vitamin that helps the body absorb calcium and phosphorus and is vital to bone health. The difference is that Vit D3 is the natural form of vitamin D that is produced...
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minerals Article Contrasting Sources and Related Metallogeny of the Triassic and Jurassic Granitoids in the Chifeng–Chaoyang District, Northern Margin of the North China Craton: A Review with New Data Jian-Guo Yuan 1,2 , Hua-Feng Zhang 3, Ying Tong 2,*, Yun-Yan Qu 4, Rui-Bin Liu 2 ...
sensors Article Analysis and Calibration of Sources of Electronic Error in PSD Sensor Response David Rodríguez-Navarro 1,*, José Luis Lázaro-Galilea 1, Ignacio Bravo-Muñoz 1, Alfredo Gardel-Vicente 1 and Georgios Tsirigotis 2 1 Department of electronics, University of Alcalá, Alcalá de ...
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materials Review Antioxidants: Classification, Natural Sources, Activity/Capacity Measurements, and Usefulness for the Synthesis of Nanoparticles Jolanta Flieger 1,* , Wojciech Flieger 2 , Jacek Baj 2 and Ryszard Maciejewski 2 1 Department of Analytical Chemistry, Medical University of Lublin, Chodz´...
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