Study	Reason for exclusion
Arikan 2008	Appears to be randomised, but study authors state that in order to prevent discontinuation of breastfeeding, only participants who were formula fed went into the group receiving hydrolysed formula, so, in fact, not random
Barr 1991	Not suffering with colic on entry to study
Bellaiche 2018	Not an RCT
Berseth 2009	No definition of colic: "parent‐identified as very fussy or extremely fussy in the baseline tolerance evaluation" (quote)
Buchanan 1998	Letter to Editor of BMJ
Campeotto 2011	Not suffering with colic on entry to study
Dupont 2010	Using probiotics to treat so not dietary modification
Evans 1981	Not an RCT – no control
Gerrard 1984	Narative review only
Giovannini 2014	Not suffering with colic on entry to study
Iacono 1991	Not an RCT – no control
Iacovou 2018	Recruited infants did not match infantile colic criteria reported in their own Methods
Imanieh 2004	Study looking for skin prick test as predictor of cows' milk protein allergy in colicky infants
Infante 2011	Not colic by our definition: only 35% (7 out of 20) infants included in analysis cried for more than 3 h/d at baseline
Jakobsson 1983	Not an RCT or quasi‐RCT
Koonce 2011	Narrative review only
Laws 1991	Letter to Editor of Journal of Pediatrics
Liebman 1981	Not an RCT or quasi‐RCT
Nocerino 2012	Conference abstract; not randomised
Pärtty 2015	Using probiotics to treat so not dietary modification
Rozé 2012	Not suffering with colic on entry to study
Sargsyan 2006	Letter to Editor of European Journal of Pediatrics
Savilahti 1989	Not an RCT or quasi‐RCT
Savino 2003	Not colic by our definition
Sherman 2015	Not suffering with colic on entry to study
Vandenplas 2017	Not suffering with colic on entry to study
Vivatvakin 2010	Not suffering with colic on entry to study
Xinias 2017	Not an RCT – consecutive entry

RCT: randomised controlled trial.