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When these are degraded by macrophages of the reticuloendothelial (mononuclear phagocyte) system, iron is liberated from hemoglobin
Avoid repeated freeze-thaw cycles to preserve peptide integrity
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While many debate whether to take Vitamin B12 on an empty stomach or with food, technically speaking, its absorption would be best when taken on an empty stomach, which means, half an hour before a meal or 2 hours after having eaten
Time of Day There is no evidence that there is an optimal injection time in humans
This is why I screen every post-weight-loss patient for vitamin B12 before I agree to operate
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