Kaytee Forti-Diet Mouse & Rat Food www.petsmart.com - $6.99 (3lbs) Product Description: Kaytee Forti-Diet Mouse & Rat Food is a nutritionally complete, fortified pet block for mice and rats. Promotes good health and a soft, healthy coat in your mice and rats. Every bite provides precise nutrition, which makes feeding simple and easy. Ingredients: Ground Yellow Corn, Dehulled Soybean Meal, Ground Wheat, Ground Oats, Ground Peanuts, Sun-cured Alfalfa Meal, Ground Flax Seed, Dried Cane Molasses, Lignin Sulfonate, Corn Sugar, Calcium Carbonate, Dicalcium Phosphate, Ground Rice, Salt, Soy Oil, Brewers Dried Yeast, Dried Beet Pulp, Whole Cell Algae Meal (source of Omega-3 DHA), Fructooligosaccharide, DL-Methionine, Yeast Extract, Yucca Schidigera Extract, L-Lysine, Vitamin A Supplement, Choline Chloride, Mixed Tocopherols (a preservative), Ferrous Sulfate, Riboflavin Supplement, Manganous Oxide, Zinc Oxide, Vitamin B12 Supplement, Vitamin E Supplement, Niacin, Menadione Sodium Bisulfite Complex (source of vitamin K activity), Copper Sulfate, L-Carnitine, Rosemary Extract, Citric Acid, Cholecalciferol (source of vitamin D3), Calcium Pantothenate, Pyridoxine Hydrochloride, Thiamine Mononitrate, Folic Acid, Calcium Iodate, Biotin, Dried Bacillus licheniformis Fermentation Product, Dried Bacillus subtilis Fermentation Product, Cobalt Carbonate, Sodium Selenite, Natural Flavoring. Allergen information: Contains peanuts and/or other tree nuts. RattyRat's Review: This is a poor quality rat block for your rats because the main ingredient they use is corn. Corn contains high levels of both nitrates and amines which can combine in the stomach to form nitrosamines. Nitrosamines are known to cause cancer.