yes I strongly believe that. The genetic predisposition is only a small part of the conditions. I suffer from UC.I have passed out some different parasites in the late 3 yrs. I also have been diagnosed with having some protozoa and viruses also.
Lately I zap parasites and seems to help me tremendously(still have my fingers crossed though) parasites with some pollutants and/or heavy metals and they make it their habitat in there, in our guts.So clean out everything