Clinical Research Directory

Inclusion Criteria: * Adult individuals between the ages of 18 and 65, * Having undergone bariatric surgery at least 3 months prior, * Individuals who agreed to participate voluntarily in the study and signed the informed consent form, * Having the cognitive ability/literacy to completely complete the food consumption record and questionnaire forms, * Individuals with no health conditions that would prevent blood tests, * Individuals who were regularly followed up after surgery and had no postoperative complications. Exclusion Criteria: * Individuals diagnosed with gastrointestinal diseases such as inflammatory bowel disease, celiac disease, or short bowel syndrome before or after bariatric surgery, * Those with a history of diseases that could affect systemic inflammation, such as autoimmune disease, active infection, or cancer, * Individuals regularly taking medications that could affect inflammation levels, such as corticosteroids, immunosuppressants, or anti-inflammatory drugs, * Individuals actively or recently using probiotic supplements, * Pregnant or breastfeeding women, * Those with a history of chronic alcohol use or substance abuse, * Individuals who experienced serious postoperative complications after surgery (e.g., anastomotic leak, serious infection, or conditions requiring reoperation), * Individuals with cognitive or communication disabilities that prevented them from providing the necessary information and data to the study or who were lost to follow-up, * Individuals with chronic organ failure, * Individuals with a psychiatric diagnosis, * Individuals who did not consent to their data being used for scientific purposes.