Medically reviewed by Jonathan Purtell, RDN Key Takeaways Vitamin B12 supports energy, red blood cell formation, nerve ...

Vitamin B12 plays a crucial role in numerous bodily functions, yet many people unknowingly suffer from suboptimal levels of this essential nutrient. This vital vitamin contributes to red blood cell ...

Vitamin B12 is an essential vitamin for cells (nerves). It is important for keeping your nerves, blood cells, and DNA healthy. Animal products naturally contain this vitamin. Meat, dairy, and eggs are ...

Even if you have a balanced diet, you might not be getting enough vitamin B12. The reason? B12 is found almost exclusively in animal foods. For instance, beef is a top source of B12. Just one 4-ounce ...

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 ...

Most people focus on getting common vitamins like A, C or D from their diet and they end up overlooking Vitamin B12. But you shouldn't. Vitamin B12 is one of the most essential nutrient for our bodies ...

Vitamin B12 deficiency can be caused by poor diet or malabsorption, leading to fatigue, muscle weakness, and memory problems.

This comprehensive review examines vitamin B12 absorption, physiological roles, deficiency states, and dietary sources, with ...