I have had to eat only steamed vegetables for some time now. I tried to eat some radishes last year because they were on the low Fodmap diet list, but they did upset my tummy the next morning. I only had 4.
I decided that raw foods were out as I was reacting badly to anything raw. So I stuck only to the really safe foods that I know are okay mostly, and bland foods.
But recently I have found I can eat a little bit of cucumber. At first I experimented with just two pieces, and I peeled it and took out the seeds. I was fine. So next time ate a bit more, and was fine again. That went on for a few weeks, and I didn't eat it every day.
So gradually I have got to the point where I can eat about 2 inches but I always peel it. And I am okay with some well washed lettuce, maybe 2 or 3 leaves of Little Gem. I chew it very very well.
It's nice to be able to introduce something else to my restricted diet.
So far, it seems to suit me and be okay. But I know that IBS can change and reactions to foods can change. But all isn't lost. Some foods will always be intolerable for the gut, and some can be gradually reintroduced.
I would definitely not eat it if I was having a 'bad gut' time though.