Caffeine in tea Camellia sinensis — Content, absorption, benefits and risks of consumption

Abstract

Therapeutic properties of tea Camellia sinensis are of particular interest since it has been consumed for ages and was always regarded as safe beverage. Tea is most popular beverage in the world because of its attractive aroma, exceptional taste, health promoting and pharmaceutical potential. Current results showed that antioxidative, antibacterial and other health effects are attributed to its caffeine content and caffeine — polyphenols interactions. An overview is given on caffeine content in different tea leaves beverage. Special attention is drawn to caffeine physiological effect on human organism. Controversies concerning the possible caffeine influence on human physical and psychological health are briefly summarized and presented.

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Correspondence to A. Gramza-Michałowska.

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Gramza-Michałowska, A. Caffeine in tea Camellia sinensis — Content, absorption, benefits and risks of consumption. J Nutr Health Aging 18, 143–149 (2014). https://doi.org/10.1007/s12603-013-0404-1

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Key words

  • Tea
  • Camellia sinensis
  • caffeine
  • health effect
  • physiological effect
  • thermogenesis
  • health risk