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1 2 3 4 Archives of Internal Medicine
Thats because your body can only absorb a limited amount (and youll expel the rest in the bathroom)
We know of two members of this society who use oral tablets instead of injections but they take enormous doses in order that, hopefully, some of what they swallow will be absorbed passively in their gut
A water-soluble vitamin, Vitamin B12 and folate are essential to the synthesis of DNA and red blood cells
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