Impact of Dinner Timing on Human Behaviours and Health

National Taiwan Normal University20 enrolled

Overview

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

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 Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

BASIC_SCIENCE

Masking

NONE

Enrollment

Conditions

Delayed Dinner Intervention

Interventions

Early dinnerBEHAVIORAL

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

Delayed dinnerBEHAVIORAL

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

Eligibility

Sex: ALLMin age: 20 YearsMax age: 50 YearsHealthy volunteers:

Medical Language ↔ Plain English

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

Locations (1)

National Taiwan Normal University

Taipei, Taiwan

RECRUITING

Outcomes

Primary Outcomes

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

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

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

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

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

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

Cognitive performance

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

Central Contacts

Yung-Chih Chen

CONTACT

+886277496979 yc.chen@ntnu.edu.tw

Chen

CONTACT

yc.chen@ntnu.edu.tw

Data from ClinicalTrials.gov

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