Table A1.

Sample Search Strategy.

PubMed Search Strategy, Searched on 28 May 2019
Set Number	Search Terms
1	(“Socioeconomic Factors”[Mesh] OR socioeconomic*[tiab] OR “SES”[tiab] OR “social economic”[tiab] OR “social economics”[tiab] OR “social economical”[tiab] OR “social economically”[tiab] OR “social stratification”[tiab] OR “social class”[tiab] OR “social classes”[tiab] OR “social stratum”[tiab] OR “social stratifications”[tiab] OR “social strata”[tiab] OR “social status”[tiab] OR “social statuses”[tiab] OR “SSS”[tiab] OR “social factors”[tiab] OR “economic factors”[tiab] OR “middle class”[tiab] OR “middle classes”[tiab] OR “lower class”[tiab] OR “lower classes”[tiab] OR “working class”[tiab] OR “working classes”[tiab] OR “upper class”[tiab] OR “upper classes”[tiab] OR “social caste”[tiab] OR “social castes”[tiab] OR “standard of living”[tiab] OR “living standard”[tiab] OR “living standards”[tiab] OR “upper income”[tiab] OR “upper incomes”[tiab] OR “high income”[tiab] OR “high incomes”[tiab] OR “low income”[tiab] OR “low incomes”[tiab] OR “income level”[tiab] OR “income levels”[tiab] OR “higher income”[tiab] OR “higher incomes”[tiab] OR “lower income”[tiab] OR “lower incomes”[tiab] OR “social inequality”[tiab] OR “social inequalities”[tiab] OR “social equity”[tiab] OR “economic class”[tiab] OR “economic classes”[tiab] OR “economic stratum”[tiab] OR “economic stratification”[tiab] OR “economic strata”[tiab] OR “economic status”[tiab] OR “economic statuses”[tiab] OR “economic inequality”[tiab] OR “economic inequalities”[tiab] OR “social condition”[tiab] OR “social conditions”[tiab] OR “living condition”[tiab] OR “living conditions”[tiab] OR “social mobility”[tiab] OR “social mobilities”[tiab] OR “household income”[tiab] OR “household incomes”[tiab] OR “household wealth”[tiab] OR “inherited wealth”[tiab] OR “home ownership”[tiab] OR “property ownership”[tiab] OR poverty[tiab] OR indigen*[tiab] OR homeless*[tiab] OR “economic deprivation”[tiab] OR “economically deprived”[tiab] OR “social deprivation”[tiab] OR “financial strain”[tiab] OR “financial strains”[tiab] OR “debt level”[tiab] OR “debt levels”[tiab] OR “level of debt”[tiab] OR “income gap”[tiab] OR “income gaps”[tiab] OR unemployed[tiab] OR underemployed[tiab] OR “economically disadvantaged”[tiab] OR “socially disadvantaged“[tiab] OR “economically secure”[tiab] OR “economic security”[tiab] OR “material wealth”[tiab] OR underprivileg*[tiab])
2	((literate[tiab] OR literacy[tiab] OR illitera*[tiab] OR “education level”[tiab] OR “educational level”[tiab] OR “education levels”[tiab] OR “educational levels”[tiab] OR “educational status”[tiab] OR “education status”[tiab] OR “level of education”[tiab] OR “educational attainment”[tiab] OR “education background”[tiab] OR “education backgrounds”[tiab] OR “educational background”[tiab] OR “educational backgrounds”[tiab] OR graduate*[tiab] OR “educational achievement”[tiab] OR “educational achievements”[tiab] OR “academic achievement”[tiab] OR “academic achievements”[tiab] OR “academic attainment”[tiab] OR “educationally disadvantaged”[tiab] OR “educational stratification”[tiab] OR “achievement gap”[tiab] OR “achievement gaps”[tiab] OR schooling[tiab] OR “school years complete”[tiab] OR “school years completed”[tiab]) AND (parent*[tiab] OR family[tiab] OR families[tiab] OR mother[tiab] OR mothers[tiab] OR father[tiab] OR fathers[tiab] OR mum[tiab] OR mums[tiab] OR dad[tiab] OR dads[tiab] OR mom[tiab] OR moms[tiab] OR paternal[tiab] OR maternal[tiab] OR birthparent*[tiab] OR birthmother*[tiab] OR birthfather*[tiab]))
3	#1 OR #2
4	(“Adolescent”[Mesh] OR “Adolescent Nutritional Physiological Phenomena”[Mesh] OR “Adolescent Development”[Mesh] OR “Adolescent Health”[Mesh] OR “Adolescent Health Services”[Mesh] OR “Adolescent Behavior”[Mesh:NoExp] OR “Adolescent Medicine”[Mesh] OR “Adolescent Psychiatry”[Mesh] OR “Psychology, Adolescent”[Mesh] OR adolescen*[tiab] OR teen*[tiab] OR youth[tiab] OR youths[tiab] OR youngster*[tiab] OR juvenile*[tiab] OR pubescent[tiab])
5	(“Snacks”[Mesh] OR snack*[tiab] OR “intake between meals”[tiab] OR “consumption between meals”[tiab] OR “eating between meals”[tiab] OR “eat between meals”[tiab] OR “eats between meals”[tiab] OR “food between meals”[tiab])
6	(“Body Weight”[Mesh:NoExp] OR “Ideal Body Weight”[Mesh] OR “Body Weight Changes”[Mesh] OR “Overweight”[Mesh] OR “Thinness”[Mesh] OR “Body Weight Maintenance”[Mesh] OR “Body Mass Index”[Mesh] OR “Body Fat Distribution”[Mesh] OR weight[tiab] OR weights[tiab] OR “body mass index”[tiab] OR “BMI”[tiab] OR “BMIs”[tiab] OR “BMIZ”[tiab] OR “body fat”[tiab] OR “body fatness”[tiab] OR obese[tiab] OR obesity[tiab] OR overweight[tiab] OR thinness[tiab] OR emaciation[tiab] OR emaciated[tiab] OR “excess fat”[tiab] OR “excess fats”[tiab] OR adiposity[tiab] OR “BAI”[tiab] OR underweight[tiab] OR “quetelet index”[tiab] OR “lean mass”[tiab] OR “fat mass”[tiab])
7	#3 AND #4 AND #5 AND #6
8	#7, Filters: English, Portuguese, Spanish; Publication date from 2000/01/01