Yerba maté is a popular traditional beverage from Argentina, Paraguay, and Uruguay that's loved for its grassy, green tea-like flavor and hefty dose of caffeine.
Its distant cousin, guayusa (pronounced "why-oo-sah") is native to parts of the Amazon. Guayusa is great for your teeth, calming nerves, increasing cardiovascular health, and is a powerhouse of antioxidants.
Both guayusa and yerba maté contain far higher doses of caffeine than standard tea — somewhere around 80-100 mg per serving.
