Papaya is a good source of ferrum and calcium. It acts against constipation and assists in digestion and assimilation of proteins, carbohydrates and fats. It is rich in vitamin A, fiber and minerals such as calcium, ferrum, magnesium, potassium and phosphorus. It is a natural substitute of antacids and very useful to persons that should avoid gluten. Papaya has been linked with anti-cancer properties against cervical, breast, lung and pancreatic cancer. It has rejuvenating properties and papaya juice prevents aging.