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.

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 B-12 …

Dec 14, 2023 · Vitamin B12 is an essential nutrient that your body needs for processes like DNA synthesis, energy production, and central nervous system function (1). Studies suggest that up to …

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 fatty …

Aug 21, 2025 · Vitamin B12 (cobalamin) is an essential water-soluble vitamin that your body can’t make on its own. It supports core processes like red blood cell production, nerve protection, and DNA …

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.

Oct 13, 2025 · Vitamin B12 is necessary for healthy blood cells and brain and nerve cell development. The RDA for vitamin B12 for adults 19 and older is 2.4 micrograms per day. You'll find vitamin B12 in …

Nov 5, 2025 · Vitamin B12 helps your nervous system function properly, which supports brain health, mood, and energy levels. Getting enough B12, especially if you are deficient, can help prevent …

Sep 8, 2023 · You can get vitamin B12 from your diet or take it as a supplement. Learn how much vitamin B12 you should take per day and if it’s possible to take too much.

Nov 12, 2025 · Learn how vitamin B12 injections treat deficiency and pernicious anemia. Includes dosage, side effects, and who may need B12 shots.