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

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." It’s normal to wonder if you’re meeting your nutritional needs if you’re feeling off in your day-to-day.

Vitamin B12 helps build your baby's brain and body. Here's why it's important during pregnancy and how to make sure you're getting enough.

This essential vitamin is generally considered safe, even at high doses. However, most people get enough B12 through diet alone, and unnecessary supplementing may lead to negative side effects.

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). Some research suggests that people ...

Vitamin B12 deficiency often begins in the brain, causing subtle changes in thinking and mood. These early signs can include ...