theanine

noun

the·​a·​nine ˈthē-ə-ˌnēn How to pronounce theanine (audio)
variants or L-theanine
: an amino acid C7H14N2O3 found especially in green tea and used as a dietary supplement
Green tea, which is rich in a depression-fighting amino acid called theanine, has previously been lauded for its health benefits.Camilla Turner

Examples of theanine in a Sentence

Recent Examples on the Web Increasing the time tea steeps increases the amount of caffeine and other components like theanine. Allison Herries, Verywell Health, 11 July 2024 Green tea has the highest concentration of theanine compared to other types of tea, according to a 2016 study in Pharmacognosy Magazine. Lindsay Funston, Health, 12 Dec. 2022 In dog calming supplements, theanine is often included to enhance its anxiety-reducing properties. Amber Smith, Discover Magazine, 5 Aug. 2023 Matcha contains about 70 milligrams of caffeine per eight ounces, while a cup of coffee has about 90 milligrams of caffeine per 8 ounces; however, the caffeine in matcha is released more slowly and steadily due to L-theanine. L'oreal Thompson Payton, Fortune, 12 Feb. 2023 See all Example Sentences for theanine 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'theanine.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1950, in the meaning defined above

Time Traveler
The first known use of theanine was in 1950

Dictionary Entries Near theanine

Cite this Entry

“Theanine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/theanine. Accessed 19 Aug. 2024.

Last Updated: - Updated example sentences
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