Many studies have found an association between low circulating (serum) vitamin D and PPD.[1][2][3] In addition, one study has found that lower levels of vitamin B12 six weeks after delivery were associated with higher EPDS scores. Further research is needed to clarify the possible relationship between vitamin B12 and PPD.[4]
Are low levels of any vitamin associated with PPD?
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•Last Updated: May 16, 2025
Research indicates that low levels of vitamin D are associated with peripartum depression, and one study suggested a potential link between lower vitamin B12 levels at 6 weeks postpartum and higher depression symptoms, though further investigation is required.