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RecruitingNCT07109583Updated Jan 23, 2026

Impact of Dinner Timing on Human Behaviours and Health

An interventional study of Early dinner and Delayed dinner in Delayed Dinner Intervention, sponsored by National Taiwan Normal University. Recruiting at 1 site in Taiwan. Open to participants aged 20 Years to 50 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-01-23.

Sponsored by National Taiwan Normal University · Not applicable, Interventional, and Basic science

From the registry’s dates

  • Primary completion was expected by Jul 2026, 3 months ago, but the record still lists the study as recruiting.
  • Started Aug 2025; still recruiting 1 year 1 month later.
Phase
Not applicable
Study type
Interventional
Enrollment
20
Allocation
Randomized
Ages
20 Years to 50 Years
Sex
All
01

Study summary

The aim of this project is to investigate the impact of dinner timing on eating behaviors, physical activity and metabolic healthy in healthy adults

Read the detailed description

In the early dinner trial, participants will be required to eat dinner between 17:30 and 19:00 for a week. In the delayed dinner trial, participants will be required to eat dinner between 20:30 and 22:00 for a week. During the intervention, energy intake (3 days of weekday and 1 day of weekend), physical activity (7 days), glucose concentrations (7 days) and sleep (7 days) will be monitored continuously for both early and delayed dinner.

After intervention, body composition, cognition, food preference, metabolic health and resting metabolic rate will be measured.

02

Conditions studied

  • Delayed Dinner Intervention

Keywords

  • Eating behaviour
  • Physical activity
  • Metabolic health
03

In context

Feeding Behavior

218 studies on the registry are indexed under Feeding Behavior; 95 are open to participants now.

This study's planned enrollment of 20 is below the median of 75 across 161 interventional studies indexed under Feeding Behavior.

Browse Feeding Behavior studies →

Lead sponsor

National Taiwan Normal University is the lead sponsor of 62 studies on the registry; 15 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
20 Years to 50 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • No regular exerciser in the last 3 months.
  • BMI between 18.5-27 kg/m².
  • Regular habit of eating three meals per day, with dinner consumed between 17:00 and 20:00.
  • No intentional weight change (>3%) in the past 3 months.
  • No special dietary practices (e.g., intermittent fasting).
  • Regular sleep (22:00-01:00), at least 6.5 hours per night.
  • Non-smoker and non-alcoholic.
  • Willing to maintain stable lifestyle and comply with protocol.

Exclusion criteria

Exclusion Criteria:

  • Pregnancy, preparing for pregnancy or menopause.
  • Personal history of/existing diabetes, cardiovascular disease or metabolic diseases.
  • Diagnosed sleep disorders.
  • Taking medications influencing glucose metabolism.
05

Study design

Phase
Not applicable
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
20 participants (estimated)

Study arms

  • Experimental
    Early dinner

    Consume dinner between 17:30 and 19:00 for one week

    Behavioral: Early dinner

  • Experimental
    Delayed dinner

    Consume dinner between 20:30 and 22:00 for one week

    Behavioral: Delayed dinner

Interventions

  • BehavioralEarly dinner

    Consume dinner between 17:30 and 19:00 for a week

  • BehavioralDelayed dinner

    Consume dinner between 20:30 and 22:00 for a week

06

What researchers measure

Primary outcomes

  1. Glucose responses

    Changes in blood glucose responses between early and delayed dinner intervention

    Time frame: During 7 days of early dinner and 7 days of delayed dinner intervention

  2. Eating behaviour

    Meal choice (i.e., energy intake in kcal) between early and delayed dinner intervention

    Time frame: During early dinner and delayed dinner intervention (3 days of weekday and 1 day of weekend)

Secondary outcomes

  1. Sleep duration

    Changes in sleep duration between early and delayed dinner intervention using MotionWatch

    Time frame: During 7 days of early dinner and 7 days of delayed dinner intervention

  2. Sleep quality

    Changes in sleep quality (efficiency, %) between early and delayed dinner intervention using MotionWatch

    Time frame: During 7 days of early dinner and 7 days of delayed dinner intervention

  3. Physical activity level

    Changes in physical activity level (minutes) between early and delayed dinner intervention

    Time frame: During 7 days of early dinner and 7 days of delayed dinner intervention

  4. Physical activity intensity

    Changes in physical activity intensity (%) between early and delayed dinner intervention using wearable product

    Time frame: During 7 days of early dinner and 7 days of delayed dinner intervention

  5. Cognitive performance

    Changes in computerized cognitive performance (accuracy in %) after early and delayed dinner intervention

    Time frame: Before and after early and delayed dinner intervention

  6. Food preference tests

    Changes in food preference after early and delayed dinner intervention

    Time frame: Before and after early and delayed dinner intervention

  7. Resting resting metabolic rate

    Changes in resting metabolic rate (kcal) after early and delayed dinner intervention

    Time frame: Before and after early and delayed dinner intervention

  8. Body composition

    Changes in body composition (fat mass in kg and percentage) after early and delayed dinner intervention using InBody

    Time frame: Before and after early and delayed dinner intervention

  9. Blood pressure

    Changes in blood pressure (diastolic and systolic blood pressure in mmHg) after early and delayed dinner intervention

    Time frame: Before and after early and delayed dinner intervention

  10. Pulse wave velocity

    Changes in pulse wave velocity (meter per second) after early and delayed dinner intervention

    Time frame: Before and after early and delayed dinner intervention

07

Study locations

1 of 1 sites recruiting
  • National Taiwan Normal University
    Taipei, Taiwan
    Recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 23, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT07109583
Lead sponsor
National Taiwan Normal University
Responsible party
Yung-Chih Chen (Principal Investigator, National Taiwan Normal University) — Principal investigator
First posted
Aug 7, 2025
Start date
Aug 20, 2025
Primary completion
Jul 1, 2026 (estimated)
Completion
Jul 1, 2026 (estimated)
Last update
Jan 23, 2026

Study contacts

Yung-Chih Chen
Contact
yc.chen@ntnu.edu.tw
+886277496979
Chen
principal investigator · National Taiwan Normal University

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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