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 supplements offer no benefits for neurological or cognitive function in older people with moderate vitamin B12 deficiency, according to a new study published in the American Journal of ...

Vitamin B12 deficiency develops gradually and affects both the blood and nervous system. It causes anemia, fatigue, numbness, ...

Take vitamin B12 on an empty stomach in the morning or early afternoon to maximize absorption and avoid sleep disruptions. Vegans, older adults, and those with certain health conditions affecting ...