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

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

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

Medically reviewed by Patricia Mikula, PharmD Vitamin B has been getting more attention as people look for ways to boost their energy and support their overall health. Many energy drinks now include ...

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 ...

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

If you're not getting enough vitamin B12 from food, a supplement can help fill the gap. Here's what experts recommend for taking it.

If you follow a Vegans or vegetarian diet, making sure you're getting enough vitamin B12 is vital. This organic compound plays many important roles in the body, from making DNA to maintaining the ...

Vitamin B12 deficiency can cause early warning signs in the feet, including tingling, numbness, and balance problems due to ...

This article was reviewed by Craig Primack, MD, FACP, FAAP, FOMA. Since the dawn of the Internet (and probably well before), there have been several solutions sold for weight management — including ...