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A rat study reported 38.4% oral bioavailability, while human oral and subcutaneous exposure remain unknown
Mechanism of Action: Triple Receptor Agonist Retatrutide is a synthetic peptide that activates three key metabolic receptors: GLP-1 (Glucagon-Like Peptide-1) Enhances insulin secretion, suppresses appetite, delays gastric emptying GIP (Glucose-Dependent Insulinotropic Polypeptide) Boosts insulin response, improves insulin sensitivity, may support lipid metabolism Glucagon Receptor (GCGR) Elevates energy expenditure, promotes fat oxidation, and may reduce liver fat This triple agonist profile delivers synergistic effects on glycemic control, fat loss, and metabolic health, making Retatrutide the most advanced incretin-based peptide in development
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