An apple a day might keep the doctor away, but a banana a day might keep you out of the hospital. Researchers at the University of Alabama have found that eating bananas daily could help prevent heart attacks and strokes. Their study, which aimed to determine how the mineral potassium affects blood flow and artery health, examined mice who received a diet containing either low, normal, or high levels of potassium. Mice given a low-potassium diet had much harder arteries than their counterparts. Mice who received high levels of potassium, on the other hand, showed significantly less artery hardening and reduced stiffness in their aorta. Next, they plan to test the effects of a high-potassium diet on humans. The National Institute of Health recommends that adults consume about 3,500 mg of potassium per day. One banana contains about 358mg of potassium.
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