An animal - based diet may trigger IBD by causing
microbial enzyme
activity in the intestines, which produces a
harmful gas called hydrogen sulfide.
However, when intestinal
microbial imbalances exist (e.g.: an overgrowth or infestation of
harmful bacteria, viruses, protozoa, and / or fungus), an increase in the
activity of the enzyme beta - glucuronidase can occur.