The kidneys are the filters of the body. They help in excreting wastes, reabsorbing water and regulating the electrolyte balance of the body. To help the kidneys to function properly, eat foods that help in detoxifying the kidneys, thereby flushing out toxins and chemicals from the kidneys that impair their functions. Plant foods packed with antioxidant nutrients are best suited for the kidneys. By boosting the antioxidant profile of the body, they protect the kidney tissues from the harmful activities of free radicals. Moreover, to support the detoxification function of the kidneys, make sure that you include foods rich in vitamins A and C and the B vitamins and fiber rich foods in your daily diet.