Medically reviewed by Jamie Johnson, RDN Key Takeaways Taking too much vitamin B6 can cause nerve damage and numbness in hands and feet.Niacin at high doses can cause flushing and, in extreme cases, ...

You cannot overdose on vitamin B12 because any excess you simply pee out. If you get b12 shots, you may experience side effects like dizziness, nausea, and fatigue. It is possible to have elevated B12 ...

Experts explain the serious side affects, what night lead to a vitamin B12 deficiency, and the foods and supplements to help ...

Vitamin B12 plays a crucial role in the health and performance of the body. With this knowledge, people often reach for supplements at the drugstore. But how much Vitamin B12 do we actually need, and ...