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Although early research is encouraging, clinical evidence in humans remains limited and further studies are needed
Problems with Absorption Even if someone receives high doses of vitamin B12, it doesnt necessarily mean that his or her body has the ability to properly absorb and use the whole dose
Prophylactic injections are preventive therapies, such as allergy shots
three randomized clinical trials Each of these studies shows that in terms of increasing serum vitamin B oral vitamin B 12 is just as effective as IM B 12 12 levels
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