Python Metabolite Paves Way for a New Appetite-Control Drug.

Researchers identified pTOS, a metabolite that spikes in Burmese pythons after large meals and, when given to mice, suppresses appetite without energy loss or major side effects. The compound is produced from tyrosine by gut bacteria and liver and is detectable in small amounts in humans after meals, signaling a potential new pathway for weight-loss drugs inspired by extreme metabolism, though translating this to humans will require extensive testing and safety evaluation.