Any dog with a sensitive tummy needs to be placed on a digestive supplement with pre/probiotics and digestive enzymes. Sometime with the simple addition of a digestive supplement you can cure a sensitive tummy completely. Swansons has some nice digestive supplements at a great price. NutriSource has a chicken and rice food that is usually easy to transition to, so it should be good for a sensitive tummy. Their other flavors are also usually easy to transition to. Try adding a tablespoon of pure canned pumpkin to every meal until he is completely transitioned too.
