Hormonal
Genetic variants in GLP1R that increase weight loss efficacy are also associated with an increased risk of nausea and vomiting, suggesting a link between efficacy and side effects.
Research suggests that the same genetic factors that help you lose more weight with GLP-1 medications may also make you more prone to nausea and vomiting. This doesn't mean you must suffer, but it highlights why side effects vary so much between individuals. If you are struggling with severe side effects, it might be worth discussing with your doctor whether a different medication or dose adjustment could help, as your genetics might be driving both your response and your side effects.
From the co-localization analysis, we infer that increased nausea or vomiting is associated with greater BMI loss efficacy.
Why this rating
Based on co-localization analysis (H4 > 88%), which is strong statistical evidence for shared causal variant, but the clinical implication is observational.
Source
Genetic predictors of GLP1 receptor agonist weight loss and side effects
Qiaojuan Jane Su et al. · Nature · 2026
DOI 10.1038/s41586-026-10330-z
More from this paper
- Carrying the T allele of the GLP1R missense variant rs10305420 (p.Pro7Leu) significantly increases weight loss efficacy in patients treated with GLP-1 receptor agonists, adding approximately 0.76 kg of weight loss per allele copy.Good
- A specific missense variant in the GIP receptor (GIPR, rs1800437, p.Glu354Gln) is associated with an increased risk of vomiting in patients treated with tirzepatide, but not semaglutide.Good
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