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GLP-1 & Obesity

GLP-1 Receptor Agonists: Mechanism of Action

13 March 2026
GLP-1 Receptor Agonists: Mechanism of Action

How GLP-1 receptor agonists drive weight loss across the brain, gut, and metabolism.

GLP-1 receptor agonists work through multiple overlapping pathways to suppress appetite, reduce body weight, and improve metabolic health. But the full picture is rarely presented in one place.

This 8-part visual resource maps the mechanism of action across every major system these agents affect: from receptor binding and brainstem satiety signalling, through hypothalamic appetite regulation and reward circuitry, to peripheral effects on gut motility, pancreatic function, lipid metabolism, and adipose tissue inflammation.

It also covers how dual and triple co-agonists extend the mechanism by simultaneously targeting GIP and glucagon pathways alongside GLP-1, and why this produces greater weight loss than single-receptor agents alone.

Available as a video, slide deck, and interactive HTML package. No brand names are used throughout.

Reference Moiz A, et al. Mechanisms of GLP-1 Receptor Agonist-Induced Weight Loss: A Review of Central and Peripheral Pathways in Appetite and Energy Regulation. Am J Med. 2025;138(6):934-940. doi:10.1016/j.amjmed.2025.01.021

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