A significant increase in the incidence of thyroid cancers was observed in GLP‐1 RA arms (MH‐OR 1.55, 95% CI [1.05, 2.27], p = 0.03, I2 = 0%, Figures 4 and S9), without any significant difference between different drugs (p = 0.79 for subgroup differences, Figure S10). Here, GLP1R is linked to thyroid cancer.