As said in the other posts, the key things you really need to pay attention to are: moderation, chewing, and fluid intake. I find that if I want to eat, say a salad, I DO NOT eat it before my meal. I eat it with my meal and chew it really well. Same with other harder to digest foods. I just have to watch eating them on an empty stomach... tho there are some things I steer away from completely. I love hazelnuts and almonds, but I know I can only eat a couple, like 2 or 3, at a time. Skins are an issue for me as well - apples, cherries (ask flchurchlady about that!), grapes, and oranges/grapefruit too. Peel and chew well.
Yep, red velvet cake will turn the output Red, like you wouldn't believe and tho I've had my ileo for 24 years, it scares the heck outta me every time I eat it!!! I just don't pay attention til I see the output. I resorted to making a red velvet cake here at home WITHOUT the red dye in it so I could eat the whole thing w/o worrying!!!!
Everyone is a little different. Experiment in moderation. If you want to try salad, try the crunchy iceberg lettuce, maybe shredded so it doesn't require as much chewing. Shredded carrots are a smart way to go as well. Celery is really hard to digest. Too many strings.
Good luck. I'm sure others will chime in on this post as well.
Diagnosed with CD in 1979, many resections and meds
Perm Ileostomy July 1984 at Cleveland Clinic
Disease free since surgery