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Collagen Supplements and Post-MBS Muscle Mass/Body Image

Recruitingn/aAges 18 Years - 65 YearsAllMudanya University
NCT07809152 on ClinicalTrials.gov ↗
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In plain words

What the trial is, and whether it could suit you

This prospective, observational cohort study aims to evaluate whether the use of collagen-containing supplements is associated with differences in muscle mass, body composition, and body image among patients who have undergone sleeve gastrectomy (SG). The study will be conducted at the General Surgery outpatient clinic of a private hospital in Bursa, Türkiye, between May 2026 and March 2027, and will enroll adult patients (aged 18-65 years) who meet current ASMBS/IFSO eligibility criteria for metabolic and bariatric surgery. Participants will be naturally allocated into two observational groups based on their own choice to use or not use collagen-containing supplements; no supplement will be provided or recommended by the study team, and no intervention will be made to participants' standard clinical care. All patients will be followed according to routine clinical practice preoperative

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📋 Eligibility rules (as published)
Inclusion Criteria: * Patients with a BMI ≥ 35 kg/m², regardless of the presence of comorbidities * Patients with a BMI of 30-34.9 kg/m² who have an obesity-related metabolic disease and are considered eligible for surgical treatment * Patients who have undergone metabolic and bariatric surgery (MBS) in accordance with current ASMBS/IFSO guidelines (Eisenberg et al., 2022) * Patients under regular postoperative follow-up * Age 18-65 years Exclusion Criteria: * Inflammatory bowel disease * History of upper gastrointestinal bleeding * Severe psychiatric disorders * Active cancer diagnosis * Pregnancy or breastfeeding * Alcohol or substance dependence * Physical limitations preventing participation in exercise
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What it tests

  • Collagen-containing supplement
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Where

1 site
Yıldırım Doruk Hastanesi
Bursa, Turkey (Türkiye)
🤝 Taking part is your choice, and you can leave at any time. Only the trial team can confirm you are eligible — always decide together with your own doctor.
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