Folic Acid Supplementation Not Linked To Cancer

March 29, 2013 · Posted in Current Treatments, Risk Factors 

folic acidFolic acid is often recommended for patients with difficult-to-treat depression and for pregnant women. A recent study suggested that when taken before and in the first weeks of pregnancy, the vitamin supplement can reduce the risk of autism in the child. However, some concern was raised after a 2007 study that suggested a possible link between folic acid and cancer risk. New research indicates that cancer is not a risk of folic acid supplementation.

In a meta-analysis that analyzed data from 13 different trials of folic acid that included a total of over 49,000 patients, no increased risk of cancer was found in patients taking folic acid. The meta-analysis was published this year in the Lancet.

Editor’s Note: In addition to folic acid’s beneficial effects during pregnancy, it can also enhance the effects of antidepressants and mood stabilizers. The dose typically recommended for depression is 1mg for women and 2mg for men.

Fifteen percent of the population has an inefficient form of the enzyme methylenetetrahydrofolate reductase (MTHFR), which converts folate to methylfolate. For treatment of depression in these individuals, l-methylfolate should be used instead of regular folic acid.

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