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- Title
The influence of sleep health on dietary intake: a systematic review and meta‐analysis of intervention studies.
- Authors
Fenton, S.; Burrows, T. L.; Skinner, J. A.; Duncan, M. J.
- Abstract
Background: Poor dietary intake increases disease risk, and poor sleep influences diet. This systematic review and meta‐analysis of intervention studies aimed to evaluate the effect of sleep health on dietary intake in adults. Methods: Five online databases were used to identify studies published between 1970 and 2019. Included studies were interventions that modified sleep and reported dietary outcomes. Results: Fifty four full texts were assessed and 24 publications were included. Following risk of bias appraisal, data were narratively summarised and a sub‐group of studies (n = 15) was meta‐analysed to determine the effect of sleep on dietary intake. One intervention modified sleep timing and 23 modified duration. Sleep duration was partially restricted (≤5.5 h night–1) (n = 16), totally restricted (n = 4), partially and totally restricted (n = 1), and extended (n = 2). Dietary outcomes were energy intake (n = 24), carbohydrate, fat, protein intake (n = 20), single nutrient intake (n = 5), diet quality (n = 1) and food types (n = 1). Meta‐analysis indicated partial sleep restriction results in higher energy intake in intervention compared with control [standardised mean difference (SMD) = 0.37; 95% confidence interval (CI) = 0.21–0.52; P < 0.001], with a mean difference of 204 kcal (95% CI = 112–295; P < 0.001) in daily energy intake, and a higher percentage of energy from fat, protein, carbohydrate (fat: SMD = 0.33; 95% CI = 0.16–0.51; P < 0.001; protein: SMD = 0.30, 95% CI = 0.12–0.47, P = 0.001; carbohydrate: SMD = 0.22, 95% CI = 0.04–0.39, P = 0.014). Conclusions: Partial sleep restriction with duration of ≤5.5 h day–1 increases daily energy intake, as well as fat, protein and carbohydrate intake. Further research is needed to determine the relationship between other dimensions of sleep health and dietary intake.
- Subjects
CINAHL database; META-analysis; CONFIDENCE intervals; MEDICAL information storage &; retrieval systems; MEDICAL databases; INFORMATION storage &; retrieval systems; SYSTEMATIC reviews; DIET; INGESTION; SLEEP; DESCRIPTIVE statistics; MEDLINE; ADULTS
- Publication
Journal of Human Nutrition & Dietetics, 2021, Vol 34, Issue 2, p273
- ISSN
0952-3871
- Publication type
Article
- DOI
10.1111/jhn.12813