Green varieties of apples cleanse the liver of toxins, and the potassium and magnesium in their composition are necessary to maintain the proper functioning of the organ. Limes and lemons have a stimulating effect, avocados contain the antioxidant glutathione, which blocks carcinogens and helps liver regeneration. In addition, the fiber in fruits speeds up metabolism and promotes weight loss, which is useful for the prevention of cirrhosis and hepatitis.