Nighttime Synchrony of Your Nutrition and Circadian Health

Recruiting now · Not applicable

Conditions studied: Sleep, Metabolism Changes, Circadian Rhythm, Lifestyle Factors, Sleep Hygiene, Sleep Hygiene, Inadequate, Sleep Deprivation, Insufficient Sleep, Circadian Misalignment, Circadian Dysregulation, Light Exposure

In brief

Sleep is an important factor for overall health. This study will see how different light exposure patterns and food intake impact a person's metabolism (how the body breaks down food) when sleeping is reduced. Participants will attend 6 to 8 in-person visits to the study clinic, including three overnight stays. People will complete surveys and medical tests. The study will last about 4 to 6 months.

Key facts

Study ID

NCT07329283

Run by

University of Utah

People needed

120

Starts

2025-12-19

Expected to finish

2031-05-31

Last updated by the study team

2026-01-22

Who can join

Age: 18 and older, up to 35. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Age: 18-35 years old; equal numbers of men and women
• Body Mass Index (BMI): 18.5-24.9 kg/m2
• Sleep Habits: habitual self-reported average total sleep time (TST) 7-9 hours per night for prior 6 months

You may not qualify if…

• Clinically diagnosed sleep disorder or apnea hypopnea index (AHI) ≥5
• Evidence of significant organ system dysfunction or disease (e.g., heart disease, diabetes)
• Fasting plasma glucose ≥100 mg/dL
• Major psychiatric illness (e.g., major depressive disorder)
• Cancer that has been in remission less than 5 years
• History of shift-work in prior year
• Weight change >5% of body weight over prior six months
• Currently following a weight-loss program
• Menopause
• Pregnant/nursing
• Greater than 5-day variation in menstrual cycle length month-to-month
• Currently smoking
• Alcohol intake >14 drinks/week or >3 drinks/day.
• Use of prescription medications (except oral contraceptives) within one month prior to or during in-lab visits.
• Consumption of illegal drugs or >500mg per day of caffeine.

Where it is running

• College of Health Research Complex - University of Utah, Salt Lake City 84112 — Salt Lake City, Utah, United States (enrolling)

Full record on ClinicalTrials.gov

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