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Genetic Factors May Personalize Obesity Treatment, 23andMe Finds

4/8/2026

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Summary

Story summary

23andMe's study finds genetic factors influence responses to GLP-1 medications for obesity.
The analysis of 27,885 participants identified a missense variant in the GLP1R gene linked to greater weight loss.
A variant in the GIPR gene predicts nausea among tirzepatide users.
The findings indicate genetic testing could guide personalized obesity treatment and reduce trial-and-error approaches.

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Story summary

23andMe's study finds genetic factors influence responses to GLP-1 medications for obesity.
The analysis of 27,885 participants identified a missense variant in the GLP1R gene linked to greater weight loss.
A variant in the GIPR gene predicts nausea among tirzepatide users.
The findings indicate genetic testing could guide personalized obesity treatment and reduce trial-and-error approaches.