Share FacebookTwitterWhatsAppPinterestLinkedinCopy URLTelegramEmailTumblrReddItPrintKoo MUMBAI, Jan11 : Weight-loss drugs such as Ozempic, Wegovy and Mounjaro work primarily by reducing hunger. They mimic a hormone the body already produces called glucagon-like peptide-1 (GLP-1), which helps regulate appetite and feelings of fullness. By slowing how quickly food leaves the stomach and acting on appetite centres in the brain, the drugs help people feel full sooner and stay fuller for longer, often without the constant hunger that makes many diets difficult to maintain.