Your dinner could be messing with your sleep: new study investigates

NCT ID NCT07138313

Recruiting now Knowledge-focused Sponsor: Uppsala University Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study from Uppsala University looks at how a low-fat, fiber-rich diet versus a high-fat, Western-style diet affects sleep quality, heart rate, and metabolism. Twenty-four healthy young adults will follow each diet for about a week, then spend two days in the lab for detailed measurements. The goal is to understand how food choices influence our internal body clock and overall health.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: Low-fat diet and high-fat diet
What this could lead to: If successful, this could reveal how different diets affect sleep quality and daily body rhythms, pointing toward dietary recommendations for better sleep and metabolic health.
What could go wrong: This is a small, early-stage study with only 24 healthy participants, so results may not apply to the general population. It is designed to gather knowledge, not to test a treatment.

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Conditions

The condition(s) this trial relates to.

circadian rhythm sleep disorder sleep disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

CIRCADIAN RHYTHM DIET INTERVENTIONS SLEEP

Contacts and locations

Locations

Uppsala biomedical center
RECRUITING

Uppsala, 75324, Sweden

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