Belly Bones are made with yogurt as well as prebiotic and probiotics. 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 treats without chewing them first. Proper size of treats based on breed is recommended.