Leafy greens
Foods high in potassium give you a better ratio of potassium to sodium. This allows your kidneys to get rid of more sodium through your urine, which lowers your blood pressure.
Leafy greens such as romaine lettuce, arugula, kale, turnip greens, collard greens, and spinach are high in potassium.
Opt for fresh or frozen greens because canned vegetables often have added sodium. Frozen vegetables contain as many nutrients as fresh vegetables and they are easy to store.