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

Vitamin B12 is typically well-tolerated, but in very rare cases, there are serious side effects to be aware of. Learn more ...

Vitamin B12 is a vital nutrient that plays numerous key roles in maintaining health. It is available in different forms and ...

Brits plagued by forgetfulness are being told to get their vitamin levels checked, as running low on a crucial nutrient can ...

Dear T.H.: Many people have strong feelings that vitamin B12 can dramatically improve their health, but it only helps to take vitamin B12 if you are deficient. Vitamin B12 deficiency isn't too common.

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