Medically reviewed by Maggie Moon, MS, RD Vitamin B12 supports red blood cells, nerve health, and DNA production, with adults needing about 2.4 micrograms daily.Shellfish like clams, oysters, and ...

Vitamin B 12 is essential for red blood cell formation, neurological function, and DNA synthesis, yet deficiencies remain common due to poor absorption or limited dietary intake. This article examines ...

Vitamin B12 is an essential nutrient that we need to maintain nervous system function and overall health. It's also a very popular dietary supplement, even though most people can get enough of it from ...