Folate Supplementation May Delay Onset of Depression in Those at High Risk
Low levels of folate, also known as folic acid or vitamin B9, have been associated with depressive symptoms in the general population. A 2014 article by A.L. Sharpley et al. in the Journal of Affective Disorders explored whether folate has protective effects. Teens and young adults (ages 14–24) at high risk for mood disorders due to a family history of these illnesses were randomly assigned to receive either folate supplements (2.5 mg daily) or placebo for up to three months. While there were no significant differences in the percentage of young people in each group who went on to be diagnosed with a mood disorder, in the folate group there was a delayed onset of illness in those who went on to become unwell.