The kidneys are sophisticated organs that perform several critical tasks to keep the body healthy. They filter about 120 to 150 quarts of blood daily to produce 1 to 2 quarts of urine, removing waste and excess water. Moreover, kidneys help regulate blood pressure by controlling the volume of blood in the body and releasing essential hormones that make red blood cells and promote bone health. To support your kidneys, include foods rich in antioxidants and low in sodium, such as blueberries, spinach, and sweet potatoes, in your diet. Regular monitoring of blood pressure and blood sugar levels can also help in maintaining kidney health.