Immune Tea


Interferon gamma production and tea drinking


A data frame with 21 observations on the following 2 variables.

  • InterferonGamma Measure of interferon gamma production

  • Drink Type of drink: Coffee or Tea


Eleven healthy non-tea-drinking individuals were asked to drink five or six cups of tea a day, while ten healthy non-tea and non-coffee-drinkers were asked to drink the same amount of coffee, which has caffeine but not the L-theanine that is in tea. The groups were randomly assigned. After two weeks, blood samples were exposed to an antigen and production of interferon gamma was measured.


Adapted from Kamath,, "Antigens in tea-Beverage prime human V 2V2 T cells in vitro and in vivo for memory and non-memory antibacterial cytokine responses", Proceedings of the National Academy of Sciences, May 13, 2003.



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