Pregnancy-induced high-blood-pressure
Supplements studied for pregnancy-induced high-blood-pressure.
Overview
Research on supplements for pregnancy-induced high-blood-pressure is limited and mostly inconclusive. Vitamin B9 (Folate) (3 studies) alone does not appear to lower gestational high-blood-pressure risk, though folic acid within a multivitamin may relate to preeclampsia outcomes. Vitamin D (3 studies) also does not appear to reduce this risk based on low-quality trials.
Single small studies of Selenium, Sulforaphane, and Black Tea provide only preliminary or conflicting signals. Black tea drinking during pregnancy was associated with higher high-blood-pressure risk in one study, though causality is uncertain. See the heatmap and evidence reviews below for individual supplement summaries.
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