D-Glucarate is found in grapefruits, apples, oranges, broccoli and Brussels sprouts. D-Glucarate supports the body's cleansing system and mdash a detoxification mechanism called glucuronidation. The human body uses glucuronidation to make a wide variety of substances more soluble in water, thus allowing their subsequent elimination from the body through urine or feces (via bile from the liver).