b12 shots how to inject Administer an Intramuscular Injection at Home Vitamin C and B12 Injection

That is a genetic-knockdown study in mice, not a drug trial: it tells you the target is real and metabolically meaningful in an animal model, but it does not test a drug, a dose, or a route

2010 May;38(4):467-76

Warning:Consult with your healthcare professional prior to use

It is also used to manage vitamin B12 deficiencies resulting from specific surgeries, diseases of the stomach or gut, and any other genetic disorders affecting vitamin B12 metabolism

Semaglutide side effects The side effect profile here is substantial

Subtracting this 0.5 g of reabsorbed B12 from the 1.5 g that normalizes blood parameters results in a requirement of 1.0 g absorbed per day (for those without pernicious anemia)