Get Enough Magnesium
A Swedish analysis published in the American Journal of Clinical Nutrition found that for every 100-milligram daily increase in dietary magnesium, there was a 9 percent drop in stroke risk. (The recommended daily intake is 320 milligrams for women, 420 for men, and most people fall short.) Many studies have linked dietary magnesium to lower blood pressure and reduced cardiovascular risk, but those using supplements have had inconsistent results. The best sources are leafy greens, whole grains, nuts, beans, seeds and fish.