I have done some research on UC. Unlike Crohn’s, UC is a condition that specifically affects the large intestine. though there are some anecdotal reports, I could not find convincing evidence that this type of diet helps with UC. I looked for publications focused on treating UC with elemental diets, SCD, low residue diets, low FODMAP diets etc. I can’t tell you with any confidence that the Fast Tract Diet will help with your situation.
On the other hand, there has been some exciting new findings suggesting that olive oil (Oleic acid) supplementation may dramatically improve UC.
http://www.medicalnewstoday.com/releases/187397.php Have you heard about this or tried this approach?