b12 injections make me sleepy Is it normal to feel tired after injection? Why Do I Feel Worse
Description
Moderate quality of evidence indicates treatment with vitamin B12 does not improve brain function
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Why Bariatric Surgery Disrupts B12 Absorption B12 absorption requires two things: stomach acid (to release B12 from food) and a molecule called intrinsic factor (made by stomach cells called parietal cells)
Berelowitz M, Szabo M, Frohman LA, Firestone S, Chu L, Hintz RL
