Beebe, D. W., Simon, S., Summer, S., Hemmer, S., Strotman, D., & Dolan, L. M. (2013). Dietary intake following experimentally restricted sleep in adolescents. Sleep, 36(6), 827-834.

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Abstract

Study Objective

To examine the relationship between sleep and dietary intake in adolescents using an experimental sleep restriction protocol.

Design

Randomized crossover sleep restriction-extension paradigm.

Setting

Sleep obtained and monitored at home, diet measured during an office visit.

Participants

Forty-one typically developing adolescents age 14-16 years.

Interventions

The 3-week protocol consisting of a baseline week designed to stabilize the circadian rhythm, followed randomly by 5 consecutive nights of sleep restriction (6.5 hours in bed Monday-Friday) versus healthy sleep duration (10 hours in bed), a 2-night washout period, and a 5-night crossover period.

Measurements

Sleep was monitored via actigraphy and teens completed validated 24-hour diet recall interviews following each experimental condition.

Results

Paired-sample t-tests examined differences between conditions for consumption of key macronutrients and choices from dietary categories. Compared with the healthy sleep condition, sleep-restricted adolescents' diets were characterized by higher glycemic index and glycemic load and a trend toward more calories and carbohydrates, with no differences in fat or protein consumption. Exploratory analyses revealed the consumption of significantly more desserts and sweets during sleep restriction than healthy sleep.

Conclusions

Chronic sleep restriction during adolescence appears to cause increased consumption of foods with a high glycemic index, particularly desserts/sweets. The chronic sleep restriction common in adolescence may cause changes in dietary behaviors that increase risk of obesity and associated morbidity.

MeSH Terms
    Actigraphy
    Adolescent
    Diet/psychology*
    Dietary Carbohydrates/metabolism
    Feeding Behavior/psychology
    Female
    Food Preferences/psychology
    Humans
    Interviews as Topic
    Male
    Sleep Deprivation/psychology*

Substances
    Dietary Carbohydrates