Could a common gut supplement boost weight loss in diabetes?
NCT ID NCT07252609
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether taking sodium butyrate tablets for 12 weeks, along with a modestly reduced-calorie diet, helps overweight or obese adults (with or without type 2 diabetes) lose more weight and improve blood sugar and fat levels compared to a placebo. 46 participants were randomly assigned to receive either the supplement or placebo. The study measured weight, body composition, and glucose control.
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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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46 people
The number who actually took part.
- Started
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Nov 2024
- Finished
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Aug 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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30 to 70 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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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: * Men and women with overweight or obesity (Body Mass Index \[BMI\] between 25.0 and 39.9 kg/m²), with or without type 2 diabetes Age between 30 and 70 years HbA1c ≤ 7.5% Exclusion Criteria: * Cardiovascular events (myocardial infarction and/or stroke) within the previous 6 months * Renal insufficiency (serum creatinine \> 1.5 mg/dL) or hepatic impairment (ALT or AST levels more than twice the upper limit of normal) * Anemia (hemoglobin \< 12 g/dL) * Insulin therapy or use of antihyperglycemic drugs other than metformin * Use of antibiotics, probiotics, or prebiotics within the previous 3 months * Habitual intense physical activity * Pregnancy or breastfeeding
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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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Federico II University
Naples, 80131, Italy
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