Abstract
ObjectiveTo assess whether shorter sleep at preschool age predicted the higher intake of energy and ultra‐processed food in childhood.MethodsCohort study conducted with 345 Brazilian children of low socioeconomic status aged 3‐4 years and 7‐8 years. Dietary data were collected through two 24‐hour recalls and children's ultra‐processed foods intake was assessed. Mothers reported the number of hours that the children had slept the past 24h.ResultsTotal energy intake at preschool and school‐age was significantly higher in shorter‐sleeping children, with children who slept <10h/d consuming an average of 117 kcal/d (95% CI: 50–184) more than those sleeping for >10 h/d at 3‐4 years; and an average difference of 62 kcal/d (7–117) at 7‐8 year. Regarding changes in diet from pre‐school to school‐age, total energy increased by 54 kcal/d (19–91) and 19 kcal/d (‐66–104) in children who slept 蠅10 and <10 h/d at preschool age, respectively. Intake of energy from ultra‐processed foods increased only in those children who slept <10 h/d. Energy provided by ultra‐processed foods remained constant in children who slept 蠅10 h/d. Dietary variables Sleep duration at 3‐4 years ≥10 hours/day &lt;10 hours/day mean±SD At 3‐4 years Total energy intake (kcal) 1492±253 1610±372* % energy from ultra‐processed foodsa 45.1±6.1 31.4±4.9* At 7‐8 years Total energy intake (kcal) 1548±195 1611±513 % energy from ultra‐processed foodsa 47.7±9.2 48.5±8.8 mean difference (95% CI) Difference between 7‐8 years and 3‐4 years % energy from ultra‐processed foodsa 2.4 (0.9—3.9) 17.0 (14.6—19.4)** * p&lt;0.05, Paired t test. ** p&lt;0.01, Wilcoxon test. a Sweets, savory and biscuits, soft drink, processed meat, and bread. ConclusionEarly shorter sleep duration was associated with higher energy intake and increased consumption of ultra‐processed foods in children. These findings add new evidence to the limited literature available with children on the role that shorter sleep duration may play in relation to intake.CNPq, CAPES/Brazil.
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