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Study aim
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Comparison of the effects of kefir and yogurt on anthropometric parameters, body composition, appetite, lipid profile and blood glucose, serum levels of vaspin and lipopolysaccharide in obese patients undergoing bariatric surgery
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Design
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This study is a clinical trial with a control group in parallel design and single blind. In each group, 24 patients undergoing bariatric surgery enter the study from day 14 after surgery and consume 100 g of yogurt or kefir daily for 8 weeks. In addition to completing the 8-week intervention phase, all patients will be rechecked for some parameters in the 16th week after surgery.
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Settings and conduct
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In this clinical trial study, patients admitted to Ghadir Shiraz Maternal and Child Hospital for bariatric surgery were evaluated for inclusion criteria and enter the study by completing a written consent. Patients will receive 100 grams of yogurt or kefir daily for 8 weeks from day 14 after surgery. At the end, blood sampling, questionnaires, anthropometric measurements, blood pressure, and body composition will be performed. At week 16 after surgery, patients will be assessed for weight, body composition and appetite. Only patients do not know if they receive yogurt or kefir (single blind).
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Participants/Inclusion and exclusion criteria
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age 20 to 60 years, BMI greater than 40 or more than 35 with comorbidity disease, patient undergoing bariatric surgery;
Chronic gastrointestinal and liver disease, Get antibiotics, nosocomial infections, hospitalization for more than 10 days, consumption of probiotic supplements in the past month
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Intervention groups
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In this study, the intervention group will receive kefir and the control group will receive yogurt as placebo for maximum similarity.
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Main outcome variables
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Anthropometric parameters; Body composition; Appetite; Lipid profile; Insulin and FBS; vaspin; Serum lipopolysaccharide