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.

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

B 12, a vitamin naturally found in animal products, has become the internet’s favorite solution to low energy, fatigue, and overall sluggishness. It’s long made an appearance in multivitamins and ...

Vitamin B12 or cobalamin is an important vitamin that your body needs, but cannot produce. This water-soluble vitamin helps to maintain healthy nerve cells, plays a key role in DNA synthesis and ...

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 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 ...

Folate and vitamin B12 supplements how been found in some MS patients to increase energy and overall well-being by reducing homocysteine levels. Multiple sclerosis (MS) currently has no cure, but ...

Energy. If you’re not taking vitamin B12, forget about having energy. As The Dr. Oz Show has recommended, “End your energy crisis with Vitamin B12.” The nice thing about sublingual pills is “you don’t ...