Morning vs. evening workouts: which makes you eat more?
NCT ID NCT06947824
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at whether exercising in the morning or evening, without eating first, changes how many calories people eat right after and over the next 24 hours. Thirty-five healthy adults aged 18-30 completed fasted exercise sessions at different times. Researchers measured their food intake at a test meal and through food diaries, along with appetite ratings. The goal was to understand how exercise timing affects eating behavior.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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35 people
The number who actually took part.
- Started
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Apr 2025
- Finished
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Dec 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 30 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * BMI of 18.5.0-30.0 kg/m2 * weight stability (≤2.5 kg weight change during the past 3 months) * ability to exercise at a vigorous intensity for 30 minutes Exclusion Criteria: * pregnancy or breastfeeding * smoking * history of or current eating disorders * medical condition or use of medication that could affect appetite or pose any contraindications to exercise As the menstrual cycle can cause fluctuations in food cravings and appetite, women of childbearing age were only eligible if they used hormonal contraceptives. To ensure constant exposure to exogenous estrogen and progestin throughout the study phase, participating women were further asked to use active hormone pills throughout the study period in both studies, a practice that is considered both safe and efficacious. \-
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Technical University of Munich
Munich, Bavaria, 80809, Germany
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Other studies related to the condition(s) this trial covers.
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