A dietary factor that can help lower blood pressure is an increased intake of potassium. Foods rich in potassium, such as bananas, avocados, spinach, and sweet potatoes, can help counteract sodium's effect on blood pressure. The recommended daily intake of potassium is around 4,700 mg. Additionally, adhering to a DASH diet (Dietary Approaches to Stop Hypertension), which emphasizes fruits, vegetables, whole grains, and low-fat dairy, can further contribute to maintaining healthy blood pressure levels.