Diet showdown: which eating plan melts belly fat best?
NCT ID NCT06754306
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested seven different diets—including time-restricted eating, alternate-day fasting, and low-calorie plans—in 84 healthy adults aged 18-35 with normal weight. Researchers measured changes in belly fat, body weight, and blood markers over a 4-week diet period followed by a 28-week recovery. The goal was to see which diet works best short-term and understand the biological reasons behind the effects.
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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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84 people
The number who actually took part.
- Started
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Aug 2024
- Finished
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Jun 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 35 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.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Participants aged 18-35 years. 2. BMI between 18.5 and 23.9. 3. Willing to voluntarily sign the informed consent form and comply with group assignments and intervention protocols. Exclusion Criteria: 1. Diagnosed with metabolic diseases such as hypertension, diabetes, or dyslipidemia. 2. Diagnosed with uncontrolled psychiatric disorders. 3. Diagnosed with severe underlying diseases, such as renal failure, heart failure, or cancer. 4. Currently taking medications that may affect study outcomes (e.g., antihypertensive, antidiabetic, or lipid-lowering drugs). 5. Women in the perimenopausal stage or with irregular menstrual cycles. 6. Pregnant women. 7. Current smokers. 8. Unstable weight within the past three months (fluctuations exceeding 4 kg).
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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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School of Public Health, Shanghai Jiao Tong University, Shanghai, China
Shanghai, Shanghai Municipality, 200025, China
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Other studies related to the condition(s) this trial covers.
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