vitamin b12 oral vs injection Efficacy of different routes of supplementation for the treatment of patients with vitamin B12 deficiency: A systematic review and network meta-analysis Vitamin B12 Oral vs Injection​

On its own, B12 is a powerful nutrient that accomplishes several important tasks in your body, including: Most of the B12 we get is through our diet and it exists in animal foods like fish, chicken, eggs, and dairy products

While most women can meet their needs through diet and prenatal vitamins, some may require supplements or injections

People with pernicious anemia often take 1000 to 2000 mcg of oral vitamin B12 daily

In many cases, insurance may cover B12 shots if medically necessary

Energy production converting food into energy more efficiently

What follows is what we know from that review and from the published clinical record