GLP-1 Medications for Weight Loss: What GLP-1 Medications Are Actually Doing in the Body

GLP-1 medications are doing far more than simply suppressing appetite. These medications act on complex hormonal systems involving the brain, pancreas, stomach, fat tissue, insulin signaling, and energy expenditure. Understanding how semaglutide, tirzepatide, survodutide, and retatrutide actually work helps explain why they are changing the future of obesity and metabolic medicine.