As matcha rises in popularity, you may have considered swapping coffee ... acid found in green tea. Theanine has been shown to reduce stress and may counter the jittery feeling caffeine can ...
You probably never think of coffee, tea, and energy drinks like Red Bull or even Coca-Cola as drugs – but that’s exactly what they are. All of these drinks contain caffeine, a naturally ...
Researchers also made assumptions about the amount of caffeine in servings of coffee and tea. The authors acknowledge that there may be information bias in the self-reported baseline intake of ...