is semaglutide safe for seniors Are and Tirzepatide Seniors? Expert Insights Are GLP-1 weight-loss drugs safe

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Nature Metabolism DOI:10.1038/s42255-026-01534-8 Abstract Semaglutide drives weight loss through cAMP-dependent mechanisms in GLP1R-1 expressing hindbrain neurons Glucagon-like peptide 1 receptor (GLP1R) agonists, such as semaglutide, drive weight loss by binding to GLP1Rsclassically described as G s -coupled G-protein-coupled receptorsin the brain

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The explosive demand for GLP-1 (glucagon-like peptide-1) receptor agonists, driven by their efficacy in treating obesity, has outpaced supply and created a dynamic market landscape