Health The One Big Reason It’s So Effective by Dr Natalie Singh - Health Editor June 28, 2026 by Dr Natalie Singh - Health Editor June 28, 2026 The efficacy of GLP-1 receptor agonists, such as semaglutide and tirzepatide, in treating obesity and type 2 diabetes is primarily driven by their ability to mimic the glucagon-like peptide-1 hormone. … 0 FacebookTwitterPinterestEmail