What Are the Benefits of Vitamin B12?
Vitamin B12 is clearly beneficial for treating a deficiency and problems related to a deficiency, such as pernicious anemia. However, it is also claimed to provide several other health benefits, such as:
- Treating the following conditions:
Many of the claimed health benefits of vitamin B12
have little or no supporting scientific evidence, especially for people without a documented deficiency (see Does Vitamin B12 Work?)
Injectable vitamin B12
and vitamin B12
nasal spray (CaloMist™, Nascobal®
) are prescription-only medications with proven effectiveness and safety. Tablets, sublingual ("under the tongue") tablets, capsules, and liquids are alternative forms that are available as non-prescription dietary supplements
. Lastly, a patch is available, but there is little evidence to suggest that the vitamin can be absorbed through the skin.