Definition of "theanine" [theanine]

• Amino acid commonly found in tea (noun)

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• "White tea contains something called theanine which has been shown to reduce mental and physical stress by working with chemicals like dopamine and serotonin in the brain."
• "A green tea component, the amino acid theanine, which is thought to have a tranquillising effect on the brain, may explain the "potentially beneficial effect" shown in the current study, Niu noted in an email to Reuters Health."
• "A green tea component, the amino acid theanine, which is thought to have a tranquillising effect on the brain, may explain the "potentially beneficial effect" shown in the current study, Dr Niu noted."