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

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

Did you know that approximately 10% to 30% of older adults suffer from some form of B vitamin deficiency? It may be that the B vitamins they supplement with are inferior forms, or that the body isn’t ...

According to a new study B-12 vitamins increase the presence of the micronutrient in mothers' breast milk, which is especially helpful in countries where it can be difficult to eat what is needed for ...

Eight essential nutrients make up the suite of B vitamins also known as the B complex. Research at Tufts and elsewhere has revealed that these B vitamins influence a vast spectrum of human health and ...

Your body is constantly sending signals, yet many of us dismiss the subtle warnings that something might be off. Vitamin B12 ...

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

Beef is a good source of vitamin B12. However, other foods, like clams, oysters, lamb liver, and sardines, contain even ...