If you're considering a vitamin B12 supplement because of certain dietary restrictions, medical conditions or your age, this ...

Metformin is the first therapy for almost everyone with type 2 diabetes, but studies show that the drug creates a risk of vitamin B12 deficiency. Your clinician should test your B12 levels regularly ...

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

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 ...