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After the weight loss shot: can supplements save your muscle and mood?
NCT ID NCT07269821
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at whether taking a daily mix of food supplements (like polyphenols and prebiotics) for 12 weeks helps people who recently lost weight with GLP-1 drugs. The goal was to see if it could improve body composition, emotional well-being, and gut health after stopping the medication. 70 adults who had lost at least 5% of their body weight took part, with half getting the supplements and half getting a placebo.
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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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70 people
The number who actually took part.
- Started
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Jul 2025
- Finished
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Nov 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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25 to 60 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: * Adults aged 25 to 60 years. * Documented unintentional or pharmacologically induced weight loss of ≥5% during the previous 3 months. * Stable body weight (±2 kg variation) during the 2 weeks prior to enrollment. * Completion or discontinuation of GLP-1 receptor agonist or other pharmacological weight-loss therapy within the last 3 months. * Willingness to maintain habitual dietary and physical activity habits throughout the study. * Ability to provide written informed consent and comply with all study procedures. Exclusion Criteria: * Current or recent use (within 3 months) of antibiotics, probiotics, or prebiotic supplements. * Active gastrointestinal disorders (e.g., inflammatory bowel disease, celiac disease, chronic diarrhea, or severe constipation). * Diagnosis of diabetes mellitus, cardiovascular disease, cancer, liver, or kidney dysfunction. * Pregnancy, breastfeeding, or intention to become pregnant during the study period. * Psychiatric disorders or use of medications affecting mood or appetite. * Participation in another clinical trial during the previous 3 months. * Any condition that, in the investigator's opinion, could interfere with study participation or interpretation of results.
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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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European Institute Of Exercise and Health
Elche, Alicante, 03202, Spain
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