Papaya Enzymes is a traditional preparation made from the juice of the unripe fruit of that name or, otherwise called Paw Paw, Papaw & Tree Melon. The plant is a native to Cenrtal America, South Mexico & tropical & sub tropical countries. The unripe fruit provides the Enzymes historically used to tenderize meat & as a supplement by people on a high protein or fatty, indigestible diet. It is a plant enzyme with a long tradition of use in both in Europe & tropical coutries. In this product Calcium phosphate is an ingredient to provide the necessary alkaline medium (ph. 7.4) to ensure proper enzyme assimilation in the stomach.