inject b12 in stomach How to self-inject intramuscular vitamin - Overview Best Vitamin B12 Injection Site:
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Led by Dr
The aging process can affect the stomachs ability to produce intrinsic factor, necessary for B12 absorption
doi:10.1111/hel.12339
Both cause anemia, but they affect red blood cells differently
McFarland LV
this direct absorption allows the effects to be felt more quickly and effectively
