Yerba mate is a hot tea steeped from the leaves of the South American holly tree *Ilex paraguariensis*. It provides caffeine, other natural stimulants, and antioxidant compounds.
People drink it for alertness, mental focus, and steady physical energy. Sipping it after a meal also supports digestion.
Traditional preparation uses loose leaves brewed in a gourd, but you can also take it as a liquid extract or capsule. Most users consume it in the morning or early afternoon instead of coffee.
Cautions: The caffeine can cause jitters, poor sleep, or a racing heart in sensitive people. Some long-term observational studies link very hot mate consumption with a higher risk of esophageal cancer. Do not use it if you are pregnant or nursing without a doctor's okay, and check first if you have a heart condition.