Thu, May-02-13, 10:55
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Senior Member
Posts: 6,140
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Plan: Mostly Fung/IDM
Stats: 165/138.4/135
BF:???/better/???
Progress: 89%
Location: Washington state
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I think you may be thinking of Vitamin B12 which is the vitamin that has no plant sources. Vitamin D deficiency is very very common now that people spend so much time indoors and wear sunscreen. Sunlight is the biggest/fastest source of Vitamin D (especially this time of year). I've been supplementing with 1-2000 units daily for several years (low by the standards on this board) and have raised my levels from 40 something to 70 something.
Vitamin D is actually a hormone, not sure why it is called a vitamin.
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