Iams Premium Protection Adult Dog Food: * 2x antioxidant vitamin E to promote a strong, healthy immune system vs. Iams ProActive Health Adult * 2x antioxidants vitamin E and beta-carotene to promote a strong healthy immune system vs. Iams ProActive Health MiniChunks * 2-part advanced fiber system, including prebiotics and beet pulp, for healthy digestion * L-carnitine to help burn fat * Iams Daily Dental Care for up to 55% less tartar build-up