Low potassium diets increased the amount of calcium inside the smooth muscle cells in the blood vessels, the researchers said in a statement. They also triggered the expression of certain genetic markers that could make the development of calcification more likely.
Still, the research was conducted on mice, so it's not exactly clear whether the same findings would apply to people, too. But previous research on humans has pointed to heart-healthy benefits of potassium, particularly in that it can help control blood pressure levels, especially when sodium intake is high.
So make it a point to hit the daily recommended amount of potassium a day, which is 4,700 milligrams (mg), to protect your heart. Some high-potassium hits? A baked potato contains 610 mg, one half of an avocado contains 487 mg, and a medium banana contains 422 mg. Other options include raisins, artichokes, milk, and spinach.
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