The balancing acts our bodies perform daily takes place in the kidneys, where the blood is cleansed of impurities. To give your kidneys a hand, include borage (cleanses), gravel root (clears urinary stones) and buchu (kidney stimulant) in your diet. To learn about these and other nutritious substances, begin to frequent the more "conscious" produce markets in your area. Growers often sell direct to these markets, which speaks of a relatively balanced economic and environmental structure that you may want to support.