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Outline for Final - If you see D2 must have consumed D2...

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Rickets,- calcium deficiency. From lack of vitamin D, which is synthesized in the skin Vitamin D is actually a hormone. Don’t need to consume Vitamin D as long as you get enough sun exposure. In the presence of UV light: 7-dehydrocholesterol -> Vitamin D3 [cholecalciferol. Made in the skin] Ergosterol -> Vitamin D2 [ergocalciferol. From plants]
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Unformatted text preview: If you see D2, must have consumed D2 from diet Recommendation: 400IU/day No difference between D2 and D3, affects status the same D2, binds to chylomicron in blood. This doesn’t happen with D3 D3- vitamin D binding protein Lumisterol- accumulates in skin upon further exposure to sun. prevents Vitamin D toxicity...
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