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Meta-Analysis
. 2024 Aug;15(8):100255.
doi: 10.1016/j.advnut.2024.100255. Epub 2024 Jun 12.

The Quality of Lunches Brought from Home to School: A Systematic Review and Meta-Analysis

Siwan Song  1 , Elizabeth Tabares  2 , Ariun Ishdorj  3 , Molly Crews  4 , Jayna Dave  5
Affiliations
Meta-Analysis

The Quality of Lunches Brought from Home to School: A Systematic Review and Meta-Analysis

Siwan Song et al. Adv Nutr. 2024 Aug.

Abstract

This systematic review and meta-analysis, spanning studies published between 1995 and 2021, investigates various aspects of lunches brought from home (LBFH) to school by children. These meals, in contrast to those provided by the National School Lunch Program (NSLP), lack strict nutritional standards. Despite the availability of NSLP lunches, ∼40% of US children opt for LBFH. This review aims to assess the food content and nutritional quality of LBFH, their adherence to NSLP standards in terms of nutrition and cost, effectiveness of intervention programs designed to enhance their nutritional quality and parental and student perceptions of LBFH. The comprehensive literature search yielded 28 eligible papers, with 16 included in meta-analysis. LBFH commonly include fruits (50%), yet vegetables (17%) and dairy (25%) are less prevalent. They frequently contain snacks (50%), sweets (48%), and sugar-sweetened beverages (31%). Compared with school lunches, LBFH exhibit lower levels of calcium, protein, iron, fiber, and vitamin A, and higher levels of carbohydrates and saturated fat. Intervention programs had no effect on quality of LBFH. On average, LBFH ($1.81) cost slightly less than lunches served at school ($1.98), without accounting for free/reduced-price meals in the calculation. The cost of school lunch for pre-k and kindergarten children became $11.32, nearly 4 times higher than that of LBFH ($2.92), after replicating the meal at home and accounting for meal preparation time. Parents preferred LBFH over school lunches because of concerns related to the quality of school meals served. This study concludes that LBFH are generally less nutritious compared with lunches provided by NSLP. Future research needs to further explore ways to improve parent perception of NSLP. Especially with many states making free meals available to all children, identifying effective ways in promoting and increasing NSLP participation can ensure more children have access to nutritionally balanced and affordable lunches.

Keywords: lunches brought from home; meta-analysis; nutrition; packed lunch; systematic review.

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Figures

FIGURE 1
FIGURE 1
PRISMA flow diagram.
FIGURE 2
FIGURE 2
Nutrients consumed in LBFH compared with the NSLP standards. LBFH, lunches brought from home; LBFH, National School Lunch Program.
See this image and copyright information in PMC

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