
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 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. …
Signs and Symptoms of Vitamin B12 Deficiency - Healthline
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 …
What Happens to Your Body When You Have a Vitamin B12 …
Dec 9, 2025 · Vitamin B12 deficiency can be caused by poor diet or malabsorption, leading to fatigue, muscle weakness, and memory problems.
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 …
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 - Health Professional Fact Sheet
Vitamin B12 is a water-soluble vitamin that is naturally present in some foods, added to others, and available as a dietary supplement and a prescription medication. Because vitamin B12 …
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 …
Why the form of vitamin B12 you take may matter more than your …
6 days ago · This comprehensive review examines vitamin B12 absorption, physiological roles, deficiency states, and dietary sources, with particular attention to differences between natural …
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....