Vitamin B12 Information

Vitamin B₁₂ is a water-soluble vitamin that is essential for healthy blood and nerve cells. It is bound to protein in food and is released by stomach acid and absorbed into the bloodstream. People who are unable to absorb it into the bloodstream may have vitamin B₁₂ deficiency, which can lead to serious problems, such as anemia or severe nerve damage.

 

To overcome these absorption problems, vitamin B₁₂ injections are often used. The vitamin is also available in tablet, nasal spray, capsule, oral liquid, and patch form. Most people taking these supplements do not experience side effects, even at high doses. However, a few rare side effects were reported in clinical trials, such as diarrhea, rash, and blood clots in the legs.