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
These examples are automatically compiled from online sources to
illustrate current usage. Opinions expressed in the examples do not represent those of
Merriam-Webster or its editors.
Send us feedback
about these examples.
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
Dictionary Entries Near L-tryptophan
Cite this Entry
“L-tryptophan.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/L-tryptophan. Accessed 14 Nov. 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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share