Published in the Journal of Functional Foods, a study conducted on mice found that anxiety in mice was reduced after consuming Matcha powder or Matcha extract.
According to the researchers, the calming effect of tea is caused by a mechanism that activates dopamine D1 receptors and serotonin 5-HT1A receptors, both of which are closely related to anxiety behavior.
"Although further epidemiological research is needed, our results show that Matcha, which has been used as a drug agent for many years, may be quite beneficial to the human body," said study lead author Yuki Kurauchi of Kumamoto University in Japan. .
"We hope our research on Matcha can produce health benefits worldwide," Kurauchi added.
For this study, the researchers conducted an "elevated plus maze" test – an anxiety test for mice – and found that anxiety in mice was reduced after consuming Matcha powder or Matcha extract.
In addition, when anxiolytic activity of different Matcha extracts was evaluated, a stronger effect was found with extracts obtained using 80 percent ethanol compared to extracts which only came from hot water.
Matcha is a new fine powder of leaves from Camellia sinensis green tea bushes (90 percent shade).