Individually I do think the issue would be the Guar Gum binder. Guar Gum can work as a laxative (CITATION) and I suspect the amount they use is an excessive amount for some cats due to the fact there are no carbs/starch to counteract the laxative impact. Fortuitously for these http://chancekdmvd.uzblog.net/the-basic-principles-of-online-bird-cage-13105552