Delayed Dinner InterventionNCT07109583
Impact of Dinner Timing on Human Behaviours and Health
A study testing Early dinner and Delayed dinner in people with Delayed Dinner Intervention, run by National Taiwan Normal University at 1 site in Taiwan.
Trial 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 more about this study
- Who is it for?
- Ages 20 to 50 yearsHealthy volunteers can take part
- Conditions the study is for
- Delayed Dinner Intervention
- What is being tested?
- Early dinner and Delayed dinner
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 20 participants
- Where
- 1 siteTaiwan
- Study dates
- 20 Aug 2025to 1 Jul 2026
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 20 to 50 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- 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.
Who cannot join
- Pregnancy, preparing for pregnancy or menopause.
- Personal history of/existing diabetes, cardiovascular disease or metabolic diseases.
- Diagnosed sleep disorders.
- Taking medications influencing glucose metabolism.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Chen contact
About this study
Official title: Effects of Dinner Timing on Eating Behaviour, Physical Activity and Metabolic Health
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.
- Conditions
- Delayed Dinner Intervention
- Being tested
- Early dinner, Delayed dinner
- Keywords
- Eating behaviour, Physical activity, Metabolic health
- Medical subject headings
- Feeding Behavior, Motor Activity
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Early dinnerBehavioural
Consume dinner between 17:30 and 19:00 for a week
Delayed dinnerBehavioural
Consume dinner between 20:30 and 22:00 for a week
| Study group | Role | What they receive |
|---|---|---|
| Early dinner | Experimental | Consume dinner between 17:30 and 19:00 for one week Receives: Behavioral: Early dinner |
| Delayed dinner | Experimental | Consume dinner between 20:30 and 22:00 for one week Receives: Behavioral: Delayed dinner |
What is being measured
The primary outcome is the main question the study is designed to answer.
Glucose responses
Changes in blood glucose responses between early and delayed dinner intervention
Measured: During 7 days of early dinner and 7 days of delayed dinner intervention
Eating behaviour
Meal choice (i.e., energy intake in kcal) between early and delayed dinner intervention
Measured: During early dinner and delayed dinner intervention (3 days of weekday and 1 day of weekend)
Secondary outcomes (10)
Sleep duration
Changes in sleep duration between early and delayed dinner intervention using MotionWatch
Measured: During 7 days of early dinner and 7 days of delayed dinner intervention
Sleep quality
Changes in sleep quality (efficiency, %) between early and delayed dinner intervention using MotionWatch
Measured: During 7 days of early dinner and 7 days of delayed dinner intervention
Physical activity level
Changes in physical activity level (minutes) between early and delayed dinner intervention
Measured: During 7 days of early dinner and 7 days of delayed dinner intervention
Physical activity intensity
Changes in physical activity intensity (%) between early and delayed dinner intervention using wearable product
Measured: During 7 days of early dinner and 7 days of delayed dinner intervention
Cognitive performance
Changes in computerized cognitive performance (accuracy in %) after early and delayed dinner intervention
Measured: Before and after early and delayed dinner intervention
Food preference tests
Changes in food preference after early and delayed dinner intervention
Measured: Before and after early and delayed dinner intervention
Resting resting metabolic rate
Changes in resting metabolic rate (kcal) after early and delayed dinner intervention
Measured: Before and after early and delayed dinner intervention
Body composition
Changes in body composition (fat mass in kg and percentage) after early and delayed dinner intervention using InBody
Measured: Before and after early and delayed dinner intervention
Blood pressure
Changes in blood pressure (diastolic and systolic blood pressure in mmHg) after early and delayed dinner intervention
Measured: Before and after early and delayed dinner intervention
Pulse wave velocity
Changes in pulse wave velocity (meter per second) after early and delayed dinner intervention
Measured: Before and after early and delayed dinner intervention
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted7 Aug 2025
- Study start20 Aug 2025
- Primary completion1 Jul 2026 (estimated)
- Study completion1 Jul 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Delayed Dinner InterventionStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Enrolment
- 20 participants (estimated)
Sponsor and investigators
- Lead sponsor
- National Taiwan Normal University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Yung-Chih Chen, National Taiwan Normal University
- Investigators
- Chen, Principal investigator, National Taiwan Normal University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07109583
- Sponsor's protocol ID
- 202203HM008-2
- Status last verified
- Jan 2026
- First submitted
- 26 Jun 2025
- Last updated
- 23 Jan 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 23 Jan 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effects of Dinner Timing on Eating Behaviour, Physical Activity and Metabolic Health
- ClinicalTrials.gov ID
- NCT07109583
- Acronym / sponsor ID
- 202203HM008-2
- Conditions
- Delayed Dinner Intervention
- Keywords
- Eating behaviour, Physical activity, Metabolic health
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 20 participants (estimated)
- Lead sponsor
- National Taiwan Normal UniversityUniversity, hospital or other
- Study start
- 20 Aug 2025 (actual)
- Primary completion
- 1 Jul 2026 (estimated)
- Study completion
- 1 Jul 2026 (estimated)
- First posted
- 7 Aug 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The aim of this project is to investigate the impact of dinner timing on eating behaviors, physical activity and metabolic healthy in healthy adults
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.
Study design
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Early dinner | Experimental | Behavioral: Early dinnerConsume dinner between 17:30 and 19:00 for one week |
| Delayed dinner | Experimental | Behavioral: Delayed dinnerConsume dinner between 20:30 and 22:00 for one week |
Who may qualify
- Ages
- 20 to 50 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (8 listed)
- 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).
Key exclusion criteria (4 listed)
- Pregnancy, preparing for pregnancy or menopause.
- Personal history of/existing diabetes, cardiovascular disease or metabolic diseases.
- Diagnosed sleep disorders.
- Taking medications influencing glucose metabolism.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Early dinnerConsume dinner between 17:30 and 19:00 for a week | Behavioural | Early dinner |
| Delayed dinnerConsume dinner between 20:30 and 22:00 for a week | Behavioural | Delayed dinner |
Primary outcome
Glucose responses
Time frame: During 7 days of early dinner and 7 days of delayed dinner intervention
Changes in blood glucose responses between early and delayed dinner intervention
Eating behaviour
Time frame: During early dinner and delayed dinner intervention (3 days of weekday and 1 day of weekend)
Meal choice (i.e., energy intake in kcal) between early and delayed dinner intervention
10 secondary outcomes
Sleep duration
Time frame: During 7 days of early dinner and 7 days of delayed dinner intervention
Sleep quality
Time frame: During 7 days of early dinner and 7 days of delayed dinner intervention
Physical activity level
Time frame: During 7 days of early dinner and 7 days of delayed dinner intervention
Physical activity intensity
Time frame: During 7 days of early dinner and 7 days of delayed dinner intervention
Cognitive performance
Time frame: Before and after early and delayed dinner intervention
Food preference tests
Time frame: Before and after early and delayed dinner intervention
Resting resting metabolic rate
Time frame: Before and after early and delayed dinner intervention
Body composition
Time frame: Before and after early and delayed dinner intervention
Blood pressure
Time frame: Before and after early and delayed dinner intervention
Pulse wave velocity
Time frame: Before and after early and delayed dinner intervention
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 23 Jan 2026.
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Chen contact
Chen principal investigator
National Taiwan Normal University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Early dinner and Delayed dinner in people with Delayed Dinner Intervention, run by National Taiwan Normal University at 1 site in Taiwan.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 8 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 23 Jan 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Taiwan. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Yung-Chih Chen (+886277496979, yc.chen@ntnu.edu.tw), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Glucose responses (time frame: During 7 days of early dinner and 7 days of delayed dinner intervention). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 Jan 2026.