FoodHealth 15 Top Rated Herbs for Cleansing the Human Kidney Advertisements 12. Horsetail Image Credits: netzwerk-fuer-gesundheit.net The Horsetail weed has diuretic abilities. Therefore, it increases urine output and cleanses the body of most contaminants. Additionally, Horsetail holds antioxidant properties that benefit kidneys and the renal system in many ways. Advertisements Advertisements