L-tryptophan
noun
L-tryp·to·phan
ˈel-ˈtrip-tə-ˌfan 
: the levorotatory form of tryptophan that is a precursor of serotonin and was used formerly as a dietary supplement especially to promote sleep and relieve depression
Examples of L-tryptophan in a Sentence
Recent Examples on the Web
This could be due to ingredients like ginger or L-tryptophan, which can irritate sensitive stomachs.
—
Amber Smith, Discover Magazine, 5 Aug. 2023
With a unique blend of hemp seed oil, Thiamine, and L-tryptophan, these chews effectively reduce stress and tension in dogs, promoting a sense of calm.
—Amber Smith, Discover Magazine, 4 July 2023
Amber Smith, Discover Magazine, 5 Aug. 2023
With a unique blend of hemp seed oil, Thiamine, and L-tryptophan, these chews effectively reduce stress and tension in dogs, promoting a sense of calm.
—Amber Smith, Discover Magazine, 4 July 2023
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'L-tryptophan.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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“L-tryptophan.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/L-tryptophan. Accessed 23 Apr. 2024.
Copy CitationMedical Definition
L-tryptophan
noun
L-tryp·to·phan
ˈel-ˈtrip-tə-ˌfan
: the levorotatory form of tryptophan that is a precursor of serotonin and was formerly used in some health food preparations in the belief that it promoted sleep and relieved depression see eosinophilia-myalgia syndrome
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