A drug used for weight loss was first discovered in lizard saliva
Modern weight loss treatments originated from a surprising source: the venomous Gila monster. This desert lizard's saliva contains a unique protein that mimics human hormones to regulate blood sugar and suppress appetite for hours.
In the 1980s, researchers discovered that the saliva of the Gila monster contains exendin-4, a protein that remarkably mimics the human hormone GLP-1. While natural human GLP-1 degrades in just two minutes, this lizard-derived version remains stable for up to twelve hours. This discovery led to the development of revolutionary drugs that slow gastric emptying by 30% and signal the brain to feel full.
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