Hey Morten, welcome to the forum! I’m sorry to hear about your experience with IBD, there are plenty of Hueligans here who have used Huel alongside an IBD or UC diagnosis. Obviously everyone is different, but this is what James our Head of Sustainable Nutrition says:
Do have a search around the forum with the search bar up top, you’ll find some useful stuff. Below is a search for IBD and there are lots of hits.
https://discuss.huel.com/search?q=IBD
Hope this helps!