NOW Bromelain 2000 GDU is one of the highest natural potencies of this proteclytic (protein digesting) enzyme available. While most enzymes are generally considered to be poorly absorbed, Bromelain is one of the most bioavailable of all enzymes and has been the subject of numerous studies worldwide. Although Bromelain is derived from pineapples, supplementation is necessary to achieve optimum levels of this enzyme. Look for this and other fine NOW products in health food stores nationwide.