Exposure to a more unhealthy diet impacts sleep microstructure during normal sleep and recovery sleep: A randomized trial
Authors' conclusion
Short-term consumption of a more unhealthy diet alters sleep oscillatory features that regulate the restorative properties of sleep. Whether such changes can mediate adverse health outcomes associated with consumption of an unhealthier diet warrants investigation.
Study context
- Population
- Healthy young mencrossover
- Participants
- 15 men
- Comparison
- High-fat/high-sugar diet vs low-fat/low-sugar diet for 1 week
Methodological detailscrossover, isocaloric diets
- Crossover
- Isocaloric diets
Primary result
As reported in the abstract
Sleep duration, macrostructure and microstructure (polysomnography) · after 1 week on each diet
- Sleep duration did not differ across diets (actigraphy and in-lab polysomnography)
- Sleep macrostructure similar after 1 week on each diet
- High-fat/high-sugar (HFHS) vs low-fat/low-sugar: reduced delta power, delta to beta ratio and slow wave amplitude, increased alpha and theta power during deep sleep
Further findings
Sleep oscillations during recovery sleep after extended wakefulness
- Similar sleep oscillatory changes observed during recovery sleep
Original publication
Exposure to a more unhealthy diet impacts sleep microstructure during normal sleep and recovery sleep: A randomized trial. Obesity (Silver Spring). Published 28 May 2023. doi:10.
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