Table 1.

Search terms and strings used in literature review and meta-synthesis

Number	Search terms and string
1	Health* OR nutriti* OR wellness OR ‘health promotion’
2	Food OR diet OR nutrition OR eating OR meal* OR nourish*
3	Beverage* OR drink*
4	Policy* OR guideline* OR regulati* OR criteria OR standard* OR strateg*
5	School* OR education*
6	Enabl* OR barrier* OR facilitator* OR lesson*
7	2 OR 3
8	1 AND 4 AND 5 AND 6 AND 7