What happens if your body has too much vitamin B12? Read on to find out the dangerous side effects of having excessive levels ...

If you’re enrolled in Medicare, these shots will be covered by Part B if you have them at a doctor’s office or a clinic or Part A if you get them while hospitalized. If you have vitamin B12 deficiency ...

Medically reviewed by Erika Prouty, PharmD Key Takeaways Vitamin B12 is generally safe, but rare reactions like allergies or ...

Pernicious anemia is an autoimmune condition in which the body cannot absorb vitamin B12 properly. A person with pernicious anemia requires lifelong vitamin B12 supplementation. Vitamin B12 is ...

Can vitamin B12 deficiency be a sign of cancer? Learn the symptoms, risks, connection to cancer, treatments, and why this matters especially for the Black community.

Vitamin B12 is essential for blood formation, nerve and brain function, and energy metabolism. Deficiency is common in vegetarians, older adults, and malabsorption states and causes fatigue, ...

B vitamins do a lot in the body, including helping to support your energy levels. But the B vitamin complex is large, and some of these vitamins, like B12, get more attention than others. With that, ...