Doctors prescribe vitamin B12 shots for people with a B12 deficiency or those with an underlying condition that inteferes with proper B12 absorption.

Medically reviewed by Amelia MacIntyre, DO Vitamin B12 helps your body make red blood cells, maintain nerve health, may boost energy levels, and support a good metabolism (turning food into energy).

You cannot overdose on vitamin B12 since it is a water-soluble vitamin. skaman306/Getty Images You cannot overdose on vitamin B12 because any excess you simply pee out. If you get b12 shots, you may ...

Are you consuming too much vitamin B12? Here are some of the warning signs that your body may send when you have too much vitamin B12 presence in your body.

Since the dawn of the Internet (and probably well before), there have been several solutions sold for weight management — including vitamins for weight loss. One in particular, vitamin B12 supplements ...

Your doctor will give you the right dosage of vitamin B12 supplement, especially if you will inject it. Taking too much can cause side effects like nausea, headache, dizziness, and, in some cases ...

Vitamin B12 is an essential component that helps your body make red blood cells and DNA. Although vitamin B12 deficiency is ...

Vitamin B12 is essential for red blood cells, DNA synthesis and your cognitive health. Taking your vitamin B12 supplement at breakfast time may help with efficacy. While side effects are rare, vitamin ...

Vitamin B12 for weight loss: Does it work? Since the dawn of the Internet (and probably well before), there have been several solutions sold for weight management — including vitamins for weight loss.