标题：Food Supplementation for Improving the Physical and Psychosocial Health of Socio‐economically Disadvantaged Children Aged Three Months to Five Years: A Systematic Review
摘要：This Campbell systematic review examines whether food supplementation is effective in improving the health of disadvantaged children under 5. The review summarizes findings from 32 studies: 21 randomised controlled trials (RCTs), and 11 controlled before‐and‐after studies (CBAs). Supplementary feeding for young, disadvantaged children has small effects on children's weight and growth in low‐ and middle‐income countries. Children who are younger, and poorer or more undernourished grow more in response to supplementary feeding. More leakage occurs from take home rations. Therefore, food supplementation programs implemented through day care centres seem to be more effective, as are those with stricter supervision. Both single and multiple interventions were effective for weight gain in children but the effect size for multiple interventions was higher. The effect is also higher for higher energy meals. There is a positive effect on psychomotor development, which is development of skills that require both mental and muscular activity (such as crawling, walking, talking). However, there was no clear evidence of an effect on cognitive development.
