Arrowroot contains 16 percent of your recommended daily allowance of potassium, an essential electrolyte important for heart health. Potassium is a vasodilator; it alleviates pressure on your blood vessels, keeping the walls supple and relaxing them to allow better blood flow. This, in turn, reduces hypertension or high blood pressure by reducing the effort your heart needs to exert to move blood through your body. Eliminating hypertension can lower risk of stroke, heart attack, or atherosclerosis.

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