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  1. 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.

  2. 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. …

  3. 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 …

  4. 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 …

  5. What Are the Benefits of Vitamin B12? - Verywell Health

    May 13, 2025 · Vitamin B12 is an essential nutrient with many health benefits. Learn more about what it does in the body and how to get enough of it.

  6. Vitamin B12 Benefits, Potential Risks and If You're Getting ...

    Oct 17, 2025 · Your body can't produce vitamin B12 on its own, so getting it from your diet is important. If you're just starting to study it, we'll help you understand it further.

  7. Dietitians Warn: 9 Vitamin B12 Deficiency Symptoms to Know

    Oct 22, 2025 · Many Americans are low in vitamin B12. Here, experts share vitamin B12 deficiency signs that experts want you to know, and what to do about it.