Vitamin B12 is important for the health of your nervous system and your red blood cells. It can be found in many animal products and fortified foods. In the United States, about 6% of people under age ...

Medically reviewed by Lindsay Cook, PharmD The recommended intake of vitamin B12 for people older than 14 is 2.4 micrograms a ...

Vitamin B12 deficiency can cause a number of strange sensations, like numbness, tingling, and more. “It felt like electricity ...

If you’re enrolled in Medicare, these shots will be covered by Part B if you have them at a doctor’s office or a clinic or Part A if you get them while hospitalized. If you have vitamin B12 deficiency ...

Although some people claim vitamin B12 shots can help with weight loss, experts do not recommend them. They can cause side effects and, in some cases, allergic reactions. According to a 2019 study, ...

Your body can't produce vitamin B12 on its own, so getting it from your diet is important. If you're just starting to study it, we'll help you understand it further.

Dear T.H.: Many people have strong feelings that vitamin B12 can dramatically improve their health, but it only helps to take vitamin B12 if you are deficient. Vitamin B12 deficiency isn't too common.