“Eating potassium-rich foods like sweet potatoes, avocados, spinach, beans, bananas — and even coffee — could be key to lowering blood pressure, according to Alicia McDonough, professor of cell and neurobiology at the Keck School of Medicine of the University of Southern California.
Decreasing sodium intake is a well-established way to lower blood pressure,” McDonough says, “but evidence suggests that increasing dietary potassium may have an equally important effect on hypertension.”

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