People may need B12 injections if they: Have a vitamin B12 deficiency (due to poor absorption, medical conditions, or dietary choices) Are vegetarians or vegans (B12 is mostly found in animal-based foods) Have digestive disorders like Crohns disease, celiac disease, or low stomach acid Are older adults (since absorption decreases with age) Take medications like metformin or proton pump inhibitors that interfere with B12 absorption Have undergone weight-loss surgery, which can affect absorption What are the Benefits of B12 Shots
van Deursen, J
The medication binds to specific receptors in your pancreas, brain, and digestive tract
Hess DT, Matsumoto A, Kim SO, Marshall HE, Stamler JS
Variations in morphology, size, PEGylation, and surface charge influence their drug-loading capacity [28]
Bartus RT, Dean RL 3rd, Beer B, Lippa AS (1982) The cholinergic hypothesis of geriatric memory dysfunction