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

How timing and lifestyle factors impact the benefits of your B-complex supplement. Reviewed by Dietitian Maria Laura Haddad-Garcia Many people take B-complex supplements for energy—but are you taking ...

B vitamins support energy production, brain health, and red blood cell formation. B12 is especially important for nerve ...

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