"However, a higher-potassium diet potentially has other mechanisms of benefit, including protecting blood vessels from oxidative damage and limiting thickening of the blood vessel wall," Fonarow said.
Increasing potassium in the diet while limiting sodium may help to reduce the risk of stroke and confer other cardiovascular benefits, he said. "Fruits such as bananas, cantaloupe, grapefruit, oranges, vegetables like tomatoes and low-fat dairy products are a good source of dietary potassium," he said.
For more information on the best sources of potassium, visit the U.S. National Library of Medicine.
SOURCES: Pasquale Strazzullo, M.D., professor, medicine, Federico II University of Naples Medical School, Italy; Larry B. Goldstein, M.D., professor, medicine, and director, Duke Stroke Center, Duke University Medical Center, Durham, N.C.; Gregg Fonarow, M.D., spokesman, American Heart Association, and professor, cardiology, University of California, Los Angeles; March 1, 2011, Journal of the American College of Cardiology, online
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