
Vitamin B-12 - Mayo Clinic
Aug 13, 2025 · Vitamin B-12 is a vitamin the body uses to make and support healthy nerve cells. It's also used to make healthy red blood cells and the genetic material inside cells called DNA. …
Vitamin B12 Deficiency: Causes, Symptoms, and Treatment
Apr 30, 2017 · Vitamin B12 is essential for good health, but some people may not be getting enough. WebMD tells you about symptoms of a vitamin B12 deficiency and how it can be treated.
Vitamin B12 - Wikipedia
Vitamin B12, also known as cobalamin or extrinsic factor, is a water-soluble vitamin involved in metabolism. [2] One of eight B vitamins, it serves as a vital cofactor in DNA synthesis and both …
We Asked a Doctor What Vitamin B12 Actually Does for Your Body
Dec 28, 2025 · While B12 doesn't produce energy, it provides essential tools to allow your body to unlock energy from the food you eat. It also supports the necessary building blocks of other …
Vitamin B12 is available in multivitamin/multimineral supplements, in B-complex supplements, and in supplements containing only vitamin B12. It is usually in a form called cyanocobalamin.
Vitamin B12 - The Nutrition Source
Vitamin B12, or cobalamin, is naturally found in animal foods. It can also be added to foods or supplements. Vitamin B12 is needed to form red blood cells and DNA. It is also a key player in …
Vitamin B12: Purpose, benefits, and sources - Medical News Today
Jun 11, 2025 · Vitamin B12 (cobalamin) is essential for the health of nerve tissue, brain function, and red blood cells. Sources include meat, eggs, and some yeast products. Vitamin B12 is the …
Vitamin B12 Deficiency: Symptoms, Causes & Treatment
Vitamin B12 Deficiency Vitamin B12 deficiency is a treatable condition that happens if you aren’t consuming enough vitamin B12 in your diet or if your body isn’t absorbing it properly. Vitamin …
Vitamin B12: Overview, Uses, Side Effects, Precautions ... - WebMD
Vitamin B12 is required for the function and development of many parts of the body, including the brain, nerves, and blood cells. Methylcobalamin is the active form of vitamin B12....
Health Benefits of Vitamin B12
Aug 20, 2025 · Vitamin B12 is one of eight B vitamins that play essential roles in your health, including neurological function, DNA and red blood cell production, and metabolism. 1. Most …