Belly Bones are made with yogurt flavoring as well as prebiotic and probiotic. Naturals Dental Care Chewy potato and rice formula Unique design and chewy texture cleans dogs' teeth as they chew and helps freshen breath. These bones are pressure molded not baked. They taste great, are healthy and safely digest, unlike rawhide that have a risk of blockage. Please always supervise your pets so they do not gulp our treats without chewing them first. Proper size of treats depending on breed is recommended Calorie Content: (calculated)ME=3172 kcal/kg; Large/179, Medium/89, Small/55, Mini/34 per bone Large = 5-3/8", Medium = 4" Small = 3-3/4", Mini 3-1/4" Ingredients: Potato flour, rice flour, vegetable glycerin, natural vegetable flavor, dried kelp, parsley, nonfat dry milk, lactic acid, gelatin, canola oil, fructooligosaccharide, dried bacillus coagulans fermentation product, lecithin, flaxseed oil, citric acid (preservative). Total microorganisms*(Bacillus coagulans)minimum of 14,000 CFU/g