Medically reviewed by Maggie Moon, MS, RD Vitamin B12 supports red blood cells, nerve health, and DNA production, with adults ...

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 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 ...

Vitamin B12 is typically well-tolerated, but in very rare cases, there are serious side effects to be aware of. Learn more about them here.

If you're considering a vitamin B12 supplement because of certain dietary restrictions, medical conditions or your age, this ...

If a person does not get enough vitamin B12, a doctor may suggest supplements containing more than the daily recommended dose. The body does not store excess vitamin B12, so taking extra is not ...

Vitamin B12 is an essential nutrient that we need to maintain nervous system function and overall health. It's also a very popular dietary supplement, even though most people can get enough of it from ...

Vitamin B12 is found only in animal foods, but in good amounts. So unless you’re a vegan, chances are you’re getting plenty of it in your diet. Yet many older adults are deficient in the vitamin. Why?

As you age, it is important to take care of your body more than you might have in your youth. There are certain necessary vitamins and minerals that with time, become harder for the body to process or ...

Vitamin B12 deficiency occurs when your body lacks enough of the vitamin on a daily basis. This can lead to a lack of healthy red blood cells. Red blood cells carry oxygen to and remove carbon dioxide ...

Vitamin B12, also known as cobalamin, has many diverse functions in the human body. For this reason, its deficiency produces a spectrum of clinical manifestations. About 15 percent of adults above 65 ...