1 Introduction The gutbrain peptide, glucagon-like peptide-1 (GLP-1), is encoded by the proglucagon (PPG) gene, which is expressed in the intestines and pancreas [for a review, see PPG gene is also expressed in the olfactory bulb ( The extensive physiological and behavioral effects of GLP-1 are mediated by the GLP-1 receptors (GLP-1R), which are expressed in both the central and autonomic nervous systems ( Following ingestion of a meal, the GLP-1 levels rapidly increase
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This lack of energy may make it difficult for individuals to engage in regular physical activity, potentially leading to weight gain
For readers comparing options more broadly, the difference between Retatrutide and Tirzepatide is worth reviewing, along with a closer look at Retatrutides potential benefits and documented Retatrutide side effects, all of which can inform a more productive conversation with a provider