Discover the best prices on Hills science cat food Cat Supplies when you comparison shop at bizrate. Browse Hills science cat food in Cat Supplies to find the lowest prices from Science Diet. Narrow your search by price range, product specification, store, or style -- even caluclate your tax and shipping charges before buying. bizrate is your one-stop shop for Pet Supply gifts: Buy Hill's Science Diet Adult Optimal Care Original Dry Cat Food and Hill's Science Diet Adult Indoor Formula Dry Cat Food.