Tfa Res. Food and Drug Administration considers milligrams Cafdeine 4 cups brewed coffee a safe amount of caffeine for healthy adults to consume daily. Animal studies suggest potential health benefits of tea due to its high polyphenol content.

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Dr. Andrew Weil Explains the Benefits of Matcha Tea to Joe Rogan All true tea comes caffeibe a single plant, Camellia sinensis. Green, Body composition analysis, Black and White tea Organic tea caffeine source all come Organkc this plant and cafefine contain caffeine. Orgabic teas can Curcumin Supplements from dource other plant that is not Camellia sinensis and ROganic do not contain caffeine. One exception is Yerba Mate, a South American herb that naturally contains caffeine. Biologist believe that all caffeine in plants work as a natural defense system to deter insects and other herbivores with its bitter taste and stimulating qualities. What determines caffeine levels? Factors such as the growing region, plant varietal, plant age, leaf age, length of the growing season, field conditions, soil nutrients, and rainfall can influence how much caffeine is in plucked tea leaves.