B12 shots versus a pill , Vitamin B12 injections are more effective than pills for quicker onset and better absorption., Benefits, Vitamin B12 is an essential water soluble nutrient vital for many B12 Injection: Uses, How to Take It & Side Effects Tua Sade Is a 1 mg intramuscular vitamin B12 injection safe for a pregnant woman with confirmed B12 deficiency and no known cobalamin allergy or severe renal hepatic impairment? The effects of vitamin B12 supplementation in pregnancy and postpartum on growth and neurodevelopment in early childhood: Study Protocol for a Randomized Placebo Controlled Trial BMJ Open Vitamin B12 is required for the function and development of many parts of the body, including the brain, nerves, and blood cells Since your body doesn't make vitamin B12, you have to