About this trial
This study aims to investigate how time-restricted eating (TRE), more specifically TRE at different times (early vs late in the day), influences brain activity, behavior, decision-making, food intake, physical activity, the gut microbiome and metabolic processes. The study intervention procedure is a replication of that described in Peters et al. (2021).
Eligibility criteria
This trial accepts healthy volunteersQualifiers
right-handed
legally competent
physically and mentally healthy
BMI: 19-35 kg/m²
Disqualifiers
weight change >5% of body weight during the last 3 months
pregnancy or breastfeeding
allergies (inclusion possible after consultation with study doctor)
history of cardiovascular disease (myocardial infarction, stroke, hypertension, hypotension) in the last year
Trial design
Crossover
Treatments tested in this trial
Early Time-Restricted Eating
BehavioralEat between 8:00 and 16:00 for 2 weeks
Late Time-Restricted Eating
BehavioralEat between 13:00 and 21:00 for 2 weeks
Treatment groups
Trial outcomes
Primary outcomes
Behaviour: risk propensity on a decision-making task
The choice (accept/reject) between a risk/gamble or safe option, based on a task paradigm by Liu et al. (2021)
Brain: blood-oxygen-level-dependent (BOLD) signal changes
BOLD signal changes on a whole-brain level and in predefined regions of interest assessed using fMRI
Behaviour: Daily food intake
Self-reported food intake, recorded via FoodApp or handwritten food diary
Large Neutral Amino Acids (LNAAs)
Blood samples
Secondary outcomes
Questionnaire assessing sleep quality
Assessed by the Pittsburgh Sleep Quality Index (PSQI, Buysse et al. 1991). The questionnaire is scored between 0-21, with a higher value indicating worse sleep quality
Total Sleep Time (TST)
Assessed through an ActiGraph device
Sleep Efficiency (SE)
Assessed through an ActiGraph device
Wake After Sleep Onset (WASO)
Assessed through an ActiGraph device Sleep Onset Latency (SOL), Sleep Fragmentation Index
Locations
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Sponsors and contacts
Click on the lead sponsor to view all of their trials.
German Institute of Human Nutrition
Lead sponsor
Prof. Dr. Olga Ramich (German Institute of Human Nutrition)
Collaborator
Freie Universität Berlin
Collaborator
German Center for Diabetes Research
Collaborator
Charite University, Berlin, Germany
Collaborator