Hi, My husband had RC Sept 2025. Our oncologist said the best thing you can do is walk, chew gum, and take colace regular strength 2 times each day . We did and he did well. He had to take senokot ( gentle natural laxative) once or twice a week if he did not have a bowel movement in 2-3 days. Not sure about the coffee. He usually went daily and no ileus problems . Hope that helps, Blessings to you.