Beet Juice
Beet juice is a terrific kidney cleanser and will improve your liver health as well. Beet juice is full of anti-oxidants that remove free radicals and the beets increase urine acidity. This helps remove calcium decreasing the chance of developing kidney stones. Beets help cleanse your blood, supporting that part of the kidneys’ job.
A quick internet search yields many beet juice recipes, ranging from lemon/ginger/beet to a spicy basil/beet to watermelon and beet juices.