Abstract
This is a protocol for a Cochrane Review (intervention). The objectives are as follows: Primary objective To assess the effects of interventions that change the school food environment on health, nutritional, and educational outcomes in children aged 2 to 19 years, as well as on sustainability outcomes (food waste and greenhouse gas emissions). Secondary objective To examine how the effectiveness of school food environment interventions varies by schooling level, income level of the country, presence of co-interventions, socioeconomic status, sex/gender, and rurality.