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See Caffeine at levels found in decaffeinated beverages is behaviourally active Appetite Volume 50, Issues 2–3, March–May 2008, Page 559. It's just a conference abstract though.


Short answer Haskall et al., The effects of L-theanine, caffeine and their combination on cognition and mood, Biol Psych (2008); 77: 113–22. Background Here's some of the detective work I've done: The principal investigator of this study is listed on your link on as Andrew Scholey of Northumbria University. Looking on Google Scholar, and ...

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