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Wednesday, February 18, 2009

Tea and Caffeine

Dr. Mercola says: "A study published in the American Journal of Clinical Nutrition in July 2008 found that caffeine from tea (as opposed to caffeine from coffee) contains a natural protein called theanine, which actually counters the normal side effects of caffeine such as raised blood pressure, headaches and tiredness." Put more simply, this means that tea may be safer than coffee not only because tea contains less caffeine, but also because the theanine in tea mitigates certain deleterious effects of caffeine. Intriguing, to say the least. It's almost as if Nature were offering us a solution to the hazards of caffeine. I'll certainly be doing more research on this topic and posting it here.

  1. "Is Tea Healthier Than Water?" "Dr. [Joseph] Mercola's Comments." (accessed Jan. 27, 2009).
  2. "L-Theanine and Caffeine in Combination Affect Human Cognition as Evidenced by Oscillatory alpha-Band Activity and Attention Task Performance." J. Nutr. 138:1572S-1577S, August 2008. Supplement: Proceedings of the Fourth International Scientific Symposium on Tea and Human Health. Simon P. Kelly, Manuel Gomez-Ramirez, Jennifer L. Montesi and John J. Foxe. (accessed Jan. 27, 2009). (Discusses interaction of L-Theanine and caffeine.)

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