The thickeners in canned foods (whether they're gums, potato, tapioca, or legumes) are one of many big factors we feed the cats mostly commercial raw and cooked homemade food, plus only one canned food a day. Karen Becker DVM found it could be brought on by usage of chicken protein, https://campbellr652scm3.ageeksblog.com/34411698/everything-about-cat-bed