Findings from various studies have found that the drinks containing a combination of L-theanine and caffeine may improve mental attention1. Tea is the main dietary source of L-theanine and also contains a moderate amount of caffeine (approx. 50mg per cup).
Improvements were observed not only in visual attention span but also in hearing attention span in a 2010 study1and this is supported by an earlier research review,2 which investigated the health aspects of caffeine further. This is emerging data, suggesting that l-theanine and flavonoids can support brain and mental function but more research is needed.
Journalists can request more information from email@example.com.
1 Einöther SJL, Martens VEF, Rycroft JA, DeBruin EA,. L-theanine and caffeine improve task switching but not intersensory attention of subjective alertness. Appetite 2010, doi:10.1016/j.appet.2010.01.003.
2 Nursing Standard, 4th November edition 2009
Drinking Tea Could Help Alleviate Mental Health Woes…
With many of us left frazzled by the effects of the global pandemic, a new study… Read More
This site has been set up by the Tea Advisory Panel to provide journalists and health professionals with the latest scientific research and nutritional information on tea. Please tick one of the boxes below to indicate whether you are a journalist or health professional.