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The association between objective sleep duration and diet. The CoLaus|HypnoLaus study
Pedro Marques-Vidal1, Romain Schaller2, Peter Vollenweider1
1Department of Medicine, Internal Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
Clinical Nutrition ESPEN
|March 25, 2022
Summary
This study found minimal links between objectively measured sleep duration and diet in Swiss adults. While some nutrient intake differences were noted, overall dietary patterns remained largely unaffected by sleep duration.
Area of Science:
- Nutritional Science
- Sleep Medicine
- Public Health
Background:
- Sleep deprivation is often linked to poor dietary habits.
- Previous research primarily relied on self-reported sleep duration.
- Objective measurement of sleep duration's impact on diet is less understood.
Purpose of the Study:
- To investigate the association between objectively measured total sleep time (TST) and dietary intake in a general adult population.
- To analyze macronutrient and micronutrient intake, dietary adequacy, and adherence to recommendations based on sleep duration categories.
Main Methods:
- A cross-sectional study involving 1910 adults in Lausanne, Switzerland (2009-2013).
- Total sleep time (TST) objectively measured using polysomnography, categorized into <7, 7-9, and >9 hours/day.
- Dietary intake assessed for total energy, macronutrients, micronutrients, and adherence to Swiss dietary guidelines.
Main Results:
- No significant associations were found between TST and total energy intake, overall dietary adequacy, or adherence to guidelines.
- Slight differences observed in total carbohydrate, mono/disaccharide, and total fat intake across sleep categories.
- Higher Body Mass Index (BMI) was noted in the >9 hours/day sleep group.
Conclusions:
- Objectively measured sleep duration shows limited association with dietary intake in the Swiss adult population.
- Observed differences in carbohydrate and fat intake warrant further investigation.
- Future research should explore the nuanced relationship between sleep patterns and specific dietary components.
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