Increased Energy | Vitamin B12

Breast Cancer: Researchers at John Hopkins University compared blood samples of women with breast cancer to those without cancer. They found that women with breast cancer had vitamin B12 plasma levels that were lower than those without cancer. Other cancers that may be linked to a vitamin B12 deficiency include oral cancer, lung cancer and cervical cancer. A case-control study compared prediagnostic levels of serum folate, vitamin B6, and vitamin B12 in 195 women later diagnosed with breast cancer and 195 age-matched women who were not diagnosed with breast cancer. Among women who were postmenopausal at the time of blood donation, the association between blood levels of vitamin B12 and breast cancer suggested a threshold effect. The risk of breast cancer was more than doubled in women with serum vitamin B12 levels in the lowest quintile (1/5) compared to women in the four highest quintiles.

Cancer: Folate is required for synthesis of DNA, and there is evidence that decreased availability of folate results in strands of DNA that are more susceptible to damage. Deficiency of vitamin B12 traps folate in a form that is unusable by the body for DNA synthesis.

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Increased Energy | Vitamin B12