GLP-1 weight-loss drugs change how people eat, but nausea needs closer study

By Beverley O'Hara, Lecturer in Public Health Nutrition, Leeds Beckett University
Clarissa Dakin, Post-Doctoral Research Fellow in Appetite Control and Energy Balance, University of Leeds
Jordan Beaumont, Senior Lecturer in Food and Nutrition, Sheffield Hallam University

Someone taking a weight-loss drug might leave half their dinner because they feel comfortably full. They might also stop because they feel nauseous. Measuring the leftovers would reveal the same result, but tell researchers little about why the person stopped eating.

That distinction is important when studying how GLP-1-based medications, including semaglutide and tirzepatide, affect appetite. To understand changes in eating, researchers need to record nausea alongside hunger and fullness, including when it…

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