title: 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.
authors: A. Gramza-Michałowska, Faculty of Food Science and Nutrition, Poznań University of Life Sciences, Wojska Polskiego 31, 60-624 Poznań, Poland, Tel. +48(61)8487331, Fax +48(61)8487430, E-mail: angramza@up.poznan.pl.
authors: A
authors: A
authors: Gramza-Michałowska
mesh_terms: D001628:Beverages / Q000032:analysis*; D002110:Caffeine / Q000032:analysis* / Q000493:pharmacokinetics; D028241:Camellia sinensis / Q000737:chemistry*; D006801:Humans; D010936:Plant Extracts / Q000032:analysis / Q000493:pharmacokinetics; D018515:Plant Leaves / Q000737:chemistry; D059808:Polyphenols / Q000032:analysis / Q000493:pharmacokinetics; D018570:Risk Assessment; D013662:Tea / Q000737:chemistry*
chemical_list: D010936:Plant Extracts; D059808:Polyphenols; D013662:Tea; D002110:Caffeine