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 overdose is so rare that serious adverse effects from consuming large amounts of vitamin B12 have only been reported in a handful of studies in the medical literature. It’s effectively ...

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

When it comes to essential nutrients, the B vitamins get a lot of attention—and rightfully so. The water-soluble vitamins help your body make energy from the food you eat and play an important role ...