Vitamin B12 is an essential nutrient that's often overlooked. Also known as cobalamin, vitamin B12 helps your body produce vital red blood cells and boost your energy levels, among other things.

Add Yahoo as a preferred source to see more of our stories on Google. MicroStockHub/Getty Images Most people focus on getting common vitamins like A, C or D from their diet and they end up overlooking ...

There’s not much research on B12 shots for weight loss. People with obesity tend to have lower vitamin B12 levels, but it’s unclear if B12 shots can promote weight loss. If you have a deficiency, B12 ...

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.

If you're a vegan or vegetarian and don't eat meat, seafood or dairy products, chances are you may have been told to pay attention to your vitamin B12 levels. That's because these types of foods are ...

Vitamin B12 is essential to brain health. As a psychiatrist, it is one of the few tests I run routinely, and one of the few procedures I do is to give someone a vitamin B12 shot when levels run low.