I would suggest that you read the book “Breaking The Vicious Cycle” by Elaine Gottschall I am nowhere as bad as your grandson. . I am 53, have Ulcerative Colitis since in my early 20s. I have been having a flare since January and it is finally calming down after two rounds of prednisone, corticosteroid enemas, my regular Lialda and also changing my diet. I have researched and am doing a combination of the SCD and Paleo diets. Trying to eat healthy and no processed foods. I use to eat Lean Cuisines for lunch every day, no more.