Your pancreas produces enzymes to digest your food. There are four main ones that work together and if any of them are absent or out of wack you can't digest whatever that enzyme has the key for. Chymotrypsin is an enzyme that helps digest fats and protiens so he could break them down adequately enough to absorb either effectively. There are enzyme supplements that contain all 4 main enzymes that he takes because it provides the one he is missing. It isn't too rare to have all four enzymes missing but having only one missing is extremely rare...this enzyme is the most rare to have an "Isolated Defficiency" in. It is 100% treatable though. He has to take a few capsules of the enzymes every time he eats anything but that is all.

As long as I can keep insurance on him he will be fine. The enzymes are over $500 every month!!!