Vitamin B12 is a vital nutrient with numerous health benefits. Learn more about what it does in the body and how to get enough of it.

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 ...

While vitamin B12 might not be as buzzy as calcium or an immediately recognizable household name like Vitamin C or D, it's just as important for your health—and particularly your brain health. This ...