Table 6.

Overview of studies on the 2-food elimination diet.

Level	Author, publication year	Mean age (years)	n	Period	Duration of diet	PPI	Diet (Exclusion of)	Histological response (eos/HPF)	Remission rate
A	Molina-Infante, 2018	11 (5–13)	25	2014-2016	6 weeks	Yes, NR	All dairy products & gluten-containing grains	< 15	40%
B	Reed, 2018	11,5 (1–18)	29	2014-2017	6 months (3 m tCS + 2-FED and 3m only 2-FED)	NR	Cow’s milk & soy (soy lecithin and soy oil were permitted)	< 15	79% (tCS + 2-FED 33% (2-FED only)

NA, not applicable; PPI, proton pump inhibitors; NR, non-responder; R, responder; eos/HPF, eosinophils per high-power field; tCS, topical corticosteroids; 2-FED, two-food elimination diet.