People who eat foods rich in the mineral magnesium appear to be less likely to suffer strokes. That is the conclusion of a meta-analysis involving roughly 250,000 people. Foods rich in magnesium include halibut, almonds, cashews, soybeans, spinach, and other dark green leafy vegetables as well as legumes like black-eyed peas and lentils. The more magnesium-rich foods people consumed, the lower the risk of experiencing a blood clot in the brain.
[American Journal of Clinical Nutrition, online Dec. 28, 2011]