I put my boyz on IAMS Puppy Formula it is a hard food, I think it is fairly new since all the recall, maybe not, but I was searching for anything during the recall scare and now they eat mostly a home made diet of ground browned turkey w/ veggies, eggs, brown rice, baked potato, etc., but transition your puppy by adding the new food alittle at a time to the old, but in the mean time I would fry up some hamburger and rinse it well to get rid of all grease and add cooked white or brown rice to it, this is a very good way to rid diarreah and you do not want your puppy to dehydrate...My boyz love ice cubes, let your puppy lick on one for a bit, but I take it away then when it gets too small...In the hot summer I have them split a freeze pop, many people have recipes (check out the threads) to help your puppy eat a well balanced and healthy diet...Good Luck!