School Meals Show Modest Gains in Math, Enrollment for Disadvantaged Children
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A new comprehensive review confirms that providing free or subsidized school meals leads to small but measurable improvements in math achievement and school enrollment, particularly for children in low- and middle-income countries.
A landmark study, published by the Cochrane organization, analyzed 40 studies encompassing 91,000 students across primary and secondary schools globally. Researchers, led by scientists at the University of Ottawa, found that school feeding programs offer a critical boost to educational outcomes and physical development in regions grappling with widespread undernutrition.
Impact Concentrated in Low- and Middle-Income Countries
The review revealed the most significant benefits of these programs are realized in low- and middle-income countries (LMICs). Providing consistent access to nutritious meals in schools slightly improves math test scores and increases enrollment rates. Furthermore, the research suggests a likely contribution to modest gains in physical growth, as measured by height-for-age and weight-for-age scores.
However, the findings indicate these programs have little to no discernible effect on reading test scores or overall school attendance. This nuance highlights the complex interplay of factors influencing educational success.
Global Disparities in Access to School Meals
Despite the proven benefits, access to school meals remains deeply unequal. According to a recent report from the World Food Programme, in 2024, only 27% of primary schoolchildren in low-income countries and 42% in lower-middle-income countries receive school meals. This contrasts sharply with upper-middle-income countries (58%) and high-income countries (79%), underscoring a significant gap in resource allocation and program implementation.
“School meals are a critical source of nourishment for children experiencing socioeconomic disadvantage,” stated a Registered Dietitian and Assistant Professor from the University of Michigan School of Public Health, who co-authored the review. “Given the variation in contexts and program designs studied, seeing measurable improvements in growth, enrolment, and math achievement is encouraging.”
A “Moral Imperative” to Address Childhood Hunger
The study’s lead author, a Professor Emeritus from the University of Ottawa, emphasized the ethical dimension of the issue. “School meal programs play an important role in improving health and educational outcomes for disadvantaged children,” she said. “What we’re seeing are modest, but real results. The way I see it, we have a moral imperative to feed hungry children.”
The research team acknowledges that evidence from high-income countries is currently limited, cautioning against generalizing the findings beyond the context of LMICs.
Calls for Enhanced Research and Equitable Implementation
Researchers are urging policymakers to prioritize robust, standardized research to inform future school feeding program design and implementation. They argue that data-driven decision-making is essential to maximize the impact of these initiatives.
Furthermore, the team stresses the importance of addressing equity within programs. “Research too often focuses on average effects and misses differences between groups,” explained another author from the University of Ottawa. “We assessed outcomes by socioeconomic disadvantage and sex, but too few studies reported these data to draw firm conclusions. Future studies need larger, better-designed comparisons.”
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The findings underscore the potential of school feeding programs to mitigate the effects of poverty and improve educational opportunities for vulnerable children, but also highlight the need for continued investment in research and a commitment to equitable access.
