Do you have any tips for people with digestive disorders, like Crohn's, that are trying to gain weight and build muscle?

Hey ive got crohns too!! I use a quality digestive enzyme to help with more food and if dairy upsets your stomach beef isolate powder is what im using as another source of protein along with bcaas. I tend to stick with chicken or tuna with veg.. rice..rice cakes and peanut butter ect. Hope this helps