Research presented at the American Heart Association’s Epidemiology and Prevention | Lifestyle and Cardiometabolic Health Scientific Sessions 2025 suggested that higher blood levels of certain essential micronutrients, including copper, manganese, and vitamin B12, during pregnancy were associated with a lower risk of developing high blood pressure in midlife. Doubling blood levels of these micronutrients during pregnancy was linked to reductions in high blood pressure in midlife. However, the study did not quantify sources of exposure and should not be interpreted as a recommendation for supplementation. More research, including clinical trials, is needed to determine the optimal dietary intake of these minerals and micronutrients.