Mammals cannot digest raw minerals. ie: eating a nail will not provide utilizable iron for nutritional needs. Most diets do not process minerals in a substantially nutritional way. Ultimate Ferret Food uses Chelated Mineral Proteinates which are minerals that have been bonded to amino acids for increased availability to the animal. Probiotics are added to help change the microbial flora in the color. This aids in digestion by increasing the concentration of helpful bacteria. Better digestion means that your pet eats less to get more; Less cost in food, less stool to clean up! Natural preservatives, in the form of mixed Tocopherols (vitamin E-type compounds), Vitamin C, beta-Carotene and Rosemary, help preserve the fat to prevent oxication and the resulting rancidity. | 