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This pilot study investigates the therapeutic potential of modulators of the glucagon-like peptide 1 (GLP-1) and neuropeptide Y (NPY) system using GLP-1 receptor agonists (semaglutide) and antagonists (exendin 9-39), as well as non-selective and NPY-Y2-receptor selective peptide tyrosine tyrosine (PYY) analogs (PYY3-36/NNC0165-0020 and NNC0165-1273) and an NPY-Y2 receptor antagonist (JNJ31020028)

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As telehealth weight loss platforms continue expanding access to GLP-1 medications heading into 2026, independent analysis of consumer accessibility trends reveals shifting dynamics in how Americans approach prescription-based weight management

But one question matters first: Is retatrutide a GLP-1 or GLP-3

To help translate this window into lasting change, behavioral planning could be structured across complementary levels of support

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