Table 2.

Details of studies about allergens suspected of causing CAFRs in cats

Reference	Number of cats	Number of individual rechallenges per cat	Details of rechallenges	Offending allergens and comments
Stogdale [1]	2	6 in 1 cat, unclear in the other	Chicken, fish, beef, horse, mutton, milk in one cat, various fresh meats and commercial foods in the other cat, details unclear	chicken, fish, beef in the first cat, and not chicken and fish in the other cat (all other meats led to deterioration)
Walton [2]	18	unclear	unclear	cow's milk (7), beef (5), rabbit, chicken, whale meat (1 each)
White and Sequoia [3]	14	unclear	various commercial diets, dairy products, fish were administered to 11 of 14 cats further details were not provided	fish (6), dairy products (2)
Guilford et al. [6]	16	unclear, depending on the diet history	15-50 g of allergen daily for 7 days	beef, corn, wheat (3 each), gluten, barley, chicken, lamb, sardines, lactose, viscera, food additives (1 each)
Reedy [14]	1	2	3 days of tuna and lamb	tuna, lamb (1)
Guaguère [19]	10	unclear	2 weeks with each allergen	beef (4), milk (3), fish (2), egg (1)
Walton et al. [22]	1	unclear	7 days with each allergen	milk
Vogelnest and Cheng [27]	17		beef, chicken, lamb, fish, diary, wheat for 7 days each (attempted only in 8 cats and completed in 6 of them)	fish (2), chicken (1), beef (1)