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 B-12 …
Vitamin B12: Overview, Uses, Side Effects, Precautions ...
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....
We Asked a Doctor What Vitamin B12 Actually Does for Your Body
Dec 28, 2025 · Q: Why is vitamin B12 important for the body, and how do we know when we have a B12 deficiency? Andrews: Vitamin B12 supports your body's natural processes of energy production, …
Health Benefits of Vitamin B12, Based on Science
Jan 30, 2024 · Vitamin B12 has many roles in your body. It supports the function of your nerve cells and is needed for red blood cell formation and DNA synthesis. For most adults, the recommended dietary...
What Happens to Your Body When You Take Vitamin B12 - EatingWell
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 …
Vitamin B12 - Consumer - Office of Dietary Supplements
What is vitamin B12 and what does it do? Vitamin B12 is a nutrient that helps keep your body’s blood and nerve cells healthy and helps make DNA, the genetic material in all of your cells. Vitamin B12 …
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: Facts, Health Benefits, Deficiency, & Treatment
Vitamin B12 health benefits include red blood cell formation, neurological function, DNA synthesis, reduced risk of heart disease, slowing or preventing cognitive decline, helping to maintain energy, …
Vitamin B12, cobalamin benefits, deficiency symptoms, dosage ...
Dec 31, 2025 · Learn how vitamin B12 supports energy, nerves, and red blood cells. Get expert tips on deficiency signs, proper dosing, and safe supplement use.
Vitamin B12 Benefits, Potential Risks and If You're Getting ...
1 day ago · If you're considering a vitamin B12 supplement because of certain dietary restrictions, medical conditions or your age, this is what you need to know.