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Dietary Impact on Sleep, Rhythms and Related Physiology

NCT07138313 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 24

Last updated 2026-02-04

No results posted yet for this study

Summary

Sleep and metabolism are closely interconnected, and emerging evidence suggests that dietary composition may influence both sleep quality and key physiological functions such as glucose regulation, cardiovascular activity, and hormonal signaling. This study aims to investigate how a Western-style unhealthy diet versus a healthier, fiber-rich diet affects objective and subjective sleep measures, 24-hour physiological parameters, and a range of biomarkers related to cardiometabolic, neurodegenerative, and gut microbial function.

Conditions

  • Sleep
  • Diet Interventions
  • Circadian Rhythm

Interventions

OTHER

Low-fat dietary intervention

Low-fat diet for approximately 1 week, preceding in-lab study period (approximately 2 days) under standardized conditions (total dietary exposure up to 9-10 days).

OTHER

High-fat dietary intervention

High-fat diet for approximately 1 week, preceding in-lab study period (approximately 2 days) under standardized conditions (total dietary exposure up to 9-10 days).

Sponsors & Collaborators

  • Uppsala University

    lead OTHER

Principal Investigators

  • Jonathan Cedernaes, MD, PhD · Uppsala University, Sweden

Study Design

Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
NONE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
32 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-09-22
Primary Completion
2027-07-31
Completion
2027-12-31

Countries

  • Sweden

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07138313 on ClinicalTrials.gov