Table 1.

Potential manifestations of food allergy eligible for inclusion

Pathology	Disorder
IgE-mediated (acute-onset)	Acute urticaria/angioedema
	Contact urticaria
	Oral allergy syndrome (pollen-associated food allergy syndrome)
	Allergic asthma/wheeze
	Atopic eczema/dermatitis
	Immediate gastrointestinal hypersensitivity such as vomiting and diarrhoea
Cell-mediated (delayed onset/chronic)	Food protein induced gastroenteropathy
	Food protein-induced enterocolitis syndrome
	Food protein-induced allergic proctocolitis
	Atopic eczema/dermatitis
	Allergic contact dermatitis
	Heiner syndrome
Combined IgE and cell-mediated (delayed onset/chronic)	Atopic eczema/dermatitis
	Eosinophilic esophagitis
	Eosinophilic gastroenteritis

Food allergy is complex and may manifest as other pathologies. As well as food allergy per se, studies of the following pathologies are eligible for inclusion, as long as there is suspicion of food allergy and the intervention focuses on addressing dietary or food-related issues. Coeliac disease is an important non-IgE mediated condition but as it has distinct symptoms and prognosis different from atopic conditions it will be excluded from this review.