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. 2017 Sep 1:116:259-267.
doi: 10.1016/j.appet.2017.05.012. Epub 2017 May 5.

Changes in diet from age 10 to 14 years and prospective associations with school lunch choice

Eleanor M Winpenny  1 , Kirsten L Corder  2 , Andy Jones  3 , Gina L Ambrosini  4 , Martin White  5 , Esther M F van Sluijs  6
Affiliations

Changes in diet from age 10 to 14 years and prospective associations with school lunch choice

Eleanor M Winpenny et al. Appetite. .

Abstract

Background: There is limited evidence on how diet changes over the transition from primary to secondary school. In this study we investigated changes in diet from age 10 (2007) to age 14 years (2011) and the contribution of school-time consumption and school lunch choice to such changes.

Methods: The 351 participants with dietary data (4 day food record) available at baseline (age 10 years) and follow-up (age 14 years) were included. Multi-level regression models were fitted for absolute or change in food and nutrient intake, cross-classified by primary and secondary school attended as appropriate, with adjustment for covariates and mis-reporting.

Results: From age 10 to age 14 years, children decreased energy intake from sugars (-2.6% energy (%E)) (standard error (SE) 0.44) and from saturated fats (-0.54%E (SE 0.18)), decreased fruit (-3.13 g/MJ (SE 1.04)) and vegetables (-1.55 g/MJ (SE 0.46)) consumption and increased sugar sweetened beverage (SSB) (4.66 g/MJ (SE 1.87)) and fries (1.31 g/MJ (SE 0.39)) consumption. Intake of snack foods, SSBs, and fries, but also fruits and vegetables was higher outside school hours. Prospective change from non-school lunch to school lunch, compared to maintaining non-school lunch consumption, was associated with decreased consumption of savoury snacks (-8.32 g/day (SE 2.03)), increased consumption of fries (12.8 g/day (SE 4.01)) and decreased consumption of fruit (-25.16 g/day (SE 11.02)) during school hours.

Conclusions: Changes in diet from age 10 to age 14 years differed within and outside of school hours. Consumption of a school lunch, compared to lunch obtained elsewhere, was associated with negative as well as positive changes in diet, suggesting that any efforts to encourage school lunch take-up need to be accompanied by further efforts to improve school lunch provision to meet nutritional guidelines.

Keywords: Adolescence; Diet; Nutrition; Policy; School; School lunch.

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