Yerba Mate
Ilex paraguariensis A.St.-Hil.
Yerba Mate (Ilex paraguariensis) is an evergreen holly species native to South America, whose dried, roasted leaves are traditionally steeped to make a caffeine-containing infusion, traditionally shared from a communal gourd with a metal straw.
Last reviewed October 3, 2026
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Is Yerba Mate safe to use?
Contains caffeine — best enjoyed earlier in the day or avoided if caffeine-sensitive, and used cautiously during pregnancy given caffeine's known risks in high amounts. IMPORTANT: let the tea cool to a comfortable drinking temperature before drinking — research has specifically linked long-term, regular consumption of very hot yerba mate (and other very hot beverages generally) to an increased risk of esophageal cancer. This risk appears tied to beverage temperature, not something unique to yerba mate itself, but is worth taking seriously with a daily habit. This risk is further increased in combination with smoking or regular alcohol use.
This is educational information, not medical advice. See our full Disclaimer before use.
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