A number of studies have previously shown magnesium can benefit your blood pressure and help prevent sudden cardiac arrest, heart attack, and stroke. For example, one meta-analysis published earlier this year in the American Journal of Clinical Nutrition looked at a total of seven studies collectively covering more than 240,000 participants. The results showed that dietary magnesium intake is inversely associated with risk of ischemic stroke. But its role in human health appears to be far more complex than previously thought, and—like vitamin D—its benefits may be more far-reaching than we've imagined. GreenMedInfo.com's database project has indexed over 100 health benefits of magnesium so far, including therapeutic benefits for: