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Sponsor: Lia Bally
Conditions: Food Preferences, Obesity
Interventions: Questionnaire (Survey and Food Frequency Questionnaire (FFQ)), Collection of digital receipts from grocery shopping
Countries: Switzerland
Obesity is currently one of the most substantial health burdens. Due to the production of marked and sustained weight loss, bariatric surgery is an increasingly used therapeutic modality to combat obesity and its comorbidities. Surgical rearrangement of the gastrointestinal tract remarkably alters metabolism and hormones acting on neurological and hypothalamic signalling, involved in food decision-making and eating behaviour. In this context, many patients who underwent bariatric surgery self-report changes in appetite, satiety and food preferences. Furthermore, new gut hormone-based (e.g. GLP-1 receptor agonist or GLP-1-RA) pharmacotherapies which mimic the effect of bariatric surgery show impressive efficacy on weight reduction by modulation of food behaviour. However, the mechanisms of such functional changes, and how they relate to food decision-making and food purchase behaviour remain unknown. In Part 2 of the BrainFood-project, the investigators propose a novel approach using digital receipts from loyalty card to unravel the effect of obesity treatments (surgical and non-surgical) on eating and food purchase behaviour in daily life.
Sex: ALL
Age: 18 Years to —
Healthy volunteers: No
Study type: OBSERVATIONAL
Inclusion Criteria: * Female and male subjects aged 18 years or older * Proficient in German (including written) * BMI≥30kg/m2 or BMI≥28kg/m2 with adiposity-related comorbidities (prediabetes, type 2 diabetes mellitus, hypertension, dyslipidemia) * Referred for obesity treatment or who started obesity treatment within 6 months (surgical or non-surgical) * Primary grocery shopping at the Swiss biggest grocery retailers (Coop, Migros), and regularly using a loyalty card (Cumulus and/or Supercard) Exclusion Criteria: * Incapacity to give informed consent * Primary shopping in other food retailers (e.g. Aldi, Lidl, outside of Switzerland, etc.)
- Bern, Switzerland