Genetics may help explain why results from weight-loss jabs vary, say scientists
The Guardian • • general
Key Points:
- Scientists have identified genetic variations in two gut hormone-related genes that may explain why weight-loss drugs called GLP1 receptor agonists work better for some individuals and cause side effects in others.
- The study, analyzing data from 27,885 patients, found one gene variant linked to slightly greater weight loss and another associated with nausea and vomiting in users of tirzepatide.
- Despite these genetic influences, researchers emphasize that genetics play a modest role compared to non-genetic factors such as sex, drug type, dosage, and treatment duration.
- Experts note that while the findings advance understanding of individual responses to weight-loss medications, genetic testing is not yet ready to guide routine clinical treatment decisions.
- The research highlights the complexity of obesity treatment outcomes, suggesting future precision medicine approaches may benefit from integrating genetic and behavioral factors.
