Matcha Combines Caffeine and L-Theanine; Quality and Preparation Affect the Drink
Matcha, a powdered green tea used in Japanese tea practice, combines caffeine with the amino acid L-theanine, according to an article published Oct. 26, 2026, in The Epoch Times. The article, by Sheridan Genrich, reported that some consumers are adopting the drink as an alternative to coffee and stated that its effects depend on caffeine sensitivity, product quality, and preparation method.
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