Diabetes & Endocrinologygastric emptyingGLP-1
An Obesity Subphenotype With Low Endogenous GLP-1 Production Shows Markedly Greater Weight Loss With Tirzepatide
By MedXY|Jun 9, 2026
A 2026 study identifies a biologically distinct obesity subphenotype marked by fast gastric emptying, low GLP-1 synthesis, and substantially greater 6-month weight loss with tirzepatide.