theanine

noun
the·​a·​nine | \ ˈthē-ə-ˌnēn How to pronounce theanine (audio) \
variants: or L-theanine \ ˈel-​ˈthē-​ə-​ˌnēn How to pronounce L-theanine (audio) \

Definition of 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 Green tea in particular has less caffeine than coffee, is a rich source of the antioxidant epigallocatechin gallate, or EGCG, and also contains the amino acid theanine, which may help reduce stress and promote calm feelings. Lisa Drayer, CNN, "How to cope with stress eating through the 2020 election," 6 Nov. 2020 The drink contains ingredients, including L-theanine, that aim to promote relaxation and to help ease stress, reports my CNN Business colleague Alicia Wallace. Kathryn Vasel, CNN, "The workplace lawsuits have begun," 17 Sep. 2020 And while researchers continue to evaluate the capacity of the amino acid l-theanine, also found in tea leaves, to... Aleksandra Crapanzano, WSJ, "Can You Find Wellness in a Cup of Tea? A Soothing Guide," 11 June 2020 CarryOn aims to offer more functional benefits by blending CBD with ingredients of choline, L-theanine, and vitamins C and E, while keeping its products under 10 calories and two grams of sugar per serving. Rachel King, Fortune, "The soda market is popping with new contenders. Will they stay or fizzle out?," 5 June 2020 According to several studies published on the National Center for Biotechnology Information website, L-theanine has also been shown to help alleviate stress with its energy-boosting proponents in teas with a similar structure. Caleb Wiegandt, The Courier-Journal, "Caffeinated sparkling water? Yes, it exists. And it was invented right here in Louisville," 2 Mar. 2020 Borgwardt said the benefits are likely not the consequence of a single component but linked to the presence of both caffeine and L-theanine. Katie Hunt, CNN, "Why drinking tea might just help in a crisis," 21 May 2020 Those researchers attributed the benefits to the combination of L-theanine (a compound found naturally in tea leaves) and caffeine. Brierley Horton, Ms, Better Homes & Gardens, "Add These 5 Anti-Anxiety Foods to Your Diet to Help Find Calm," 15 May 2020 Green tea has less caffeine than coffee, is a rich source of the antioxidant epigallocatechin gallate, or EGCG, and also contains the amino acid theanine, which may help reduce stress and promote calm feelings. Lisa Drayer, CNN, "Foods to boost your mood, now that you really need it," 16 Apr. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'theanine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of theanine

1950, in the meaning defined above

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The first known use of theanine was in 1950

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Last Updated

18 Nov 2020

Cite this Entry

“Theanine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/theanine. Accessed 25 Nov. 2020.

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