Researchers found a direct link: for every 100 mg increase in magnesium per day, there was a 9 percent decrease in the chances of having an ischemic stroke, where blood supply to the brain is blocked.
Discussing their findings, doctors suggested people should eat more magnesium-rich foods such as green leafy vegetables, beans, nuts, and whole grains, and that further study may move the U.S. to begin recommending magnesium supplements to reduce chances of stroke. The current recommended dietary allowance for magnesium for adult men is 420 mg per day, and for adult women, 320 mg per day.