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• 15:06, 13 September 2026 Lilly talk contribs created page Vitamin D Synthesis (Created page with "{{#seo: |title=Vitamin D Synthesis — Sunlight, UVB, Skin Biology, and Environmental Factors |description=Vitamin D synthesis begins when ultraviolet B radiation reaches the skin and converts 7-dehydrocholesterol into previtamin D3. Explore the roles of UVB dose, latitude, season, pigmentation, age, clothing, sunscreen, occupation, and phototherapy in vitamin D production. |keywords=vitamin D synthesis, vitamin D3, UVB radiation, sunlight, skin, 7-dehydrocholesterol, pr...")