carnitine

noun

car·​ni·​tine ˈkär-nə-ˌtēn How to pronounce carnitine (audio)
: a quaternary ammonium compound C7H15NO3 that is present especially in vertebrate muscle, that in the levorotatory form is involved in the transfer of fatty acids across mitochondrial membranes, and in humans is obtained from food (such as meat or milk) or is synthesized chiefly in the liver and kidneys from a lysine derivative

Examples of carnitine in a Sentence

Recent Examples on the Web Some of the most important ingredients to look for are caffeine, green tea extract, and carnitine. Amber Smith, Discover Magazine, 15 Dec. 2022 Green tea extract can cause nausea and vomiting, and carnitine can cause heartburn and diarrhea. Amber Smith, Discover Magazine, 15 Dec. 2022 Each soft treat contains 15 mg of CBD and other calming ingredients such as acetyl-L carnitine, ginger root, melatonin, and chamomile. Amber Smith, Discover Magazine, 23 Oct. 2022 The Boost blend contains L-carnitine, L-theanine, noopept, DHA, tyrosine, and magnesium. Amber Smith, Discover Magazine, 1 Nov. 2022 While some studies show promise, other results are mixed due to poor sample selection and controls, and more rigorous research is necessary to discover how effective carnitine is at promoting fat loss. Dallas News, 20 May 2022 This unique formula includes ginkgo biloba, bacopa monnieri, l-theanine, as well as phosphatidylserine and acetyl-l carnitine. Amber Smith, Discover Magazine, 15 Jan. 2023 One review of several trials showed that overweight individuals lost an average of 2.9 pounds while taking L-carnitine. Dallas News, 12 Sep. 2022 The lawsuit says the coach called the substance Carnitor, a diet supplement used to treat low blood levels of carnitine. David Woods, IndyStar, 4 Oct. 2022

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

Word History

Etymology

International Scientific Vocabulary, from Latin carn-, caro

First Known Use

circa 1922, in the meaning defined above

Time Traveler
The first known use of carnitine was circa 1922

Dictionary Entries Near carnitine

Cite this Entry

“Carnitine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/carnitine. Accessed 18 Jun. 2024.

Medical Definition

carnitine

noun
car·​ni·​tine ˈkär-nə-ˌtēn How to pronounce carnitine (audio)
: a quaternary ammonium compound C7H15NO3 that is present especially in vertebrate muscle, is involved in the transfer of fatty acids across mitochondrial membranes, and in humans is obtained from food (as meat or milk) or is synthesized from a lysine derivative

More from Merriam-Webster on carnitine

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