Perhaps women have lower levels of Vitamin D because vitamin D hides in fat

Oops - conflict about which sex has lower vitamin D level: women or men

Body fat percentage Wikipedia

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Response vs obesity @ /is.gd/2Xobese
Click on chart for details

See also VitaminDWiki

Women who were actually fat (40% to 50% fat), but had low BMI are the red dots in the pink region
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Senior Korean women have much less vitamin D than men (possible reasons) Jan 2014}Higher % of Senior Korean women are deficient than men
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2.3X more likely to have < 18 ng: 2008 Study

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See also web

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