How to Use leucine in a Sentence

leucine

noun
  • Among them, leucine plays an outsized role.
    — Shimite Obialo, Forbes.com, 26 May 2026
  • Foods with a high leucine content, like chicken, fish, and cheese.
    — Audrey Noble, Vogue, 30 Dec. 2023
  • However, whey is not the only source of leucine.
    — Malissa Rodenburg, Health, 15 May 2026
  • Rich in leucine, an amino acid that strongly supports muscle growth.
    — Merve Ceylan, Health, 26 Feb. 2026
  • Branched-chain amino acids only contain leucine, isoleucine, and valine.
    — Paul Kita, Men's Health, 15 Nov. 2022
  • Isoleucine is one of three highly similar amino acids, along with leucine and valine.
    — ArsTechnica, 30 Apr. 2026
  • This includes high amounts of leucine, a branched chain amino acid needed for muscle repair and growth.
    — Kayla Hui, Health.com, 27 Jan. 2022
  • Some are even fortified with more leucine than most casein or whey powders on the market.
    — Paul Kita, Men's Health, 5 Apr. 2023
  • The three essential amino acids that make up branched-chain amino acids include leucine, valine, and isoleucine.
    — Dallas News, 22 Dec. 2022
  • Phenylalanine and leucine are both nonpolar and uncharged amino acids.
    — William A. Haseltine, Forbes, 20 Sep. 2021
  • These are a group of three amino acids (leucine, isoleucine, and valine) that are essential for muscle growth and repair.
    — Amber Smith, Discover Magazine, 15 Dec. 2022
  • Pineapples contain valine and leucine, two amino acids that are essential to human health.
    — Katy Severson, chicagotribune.com, 26 Feb. 2021
  • Cow's milk is also a good source of leucine, an amino acid needed to trigger muscle protein synthesis.
    — Cynthia Sass, Mph, Health.com, 7 Jan. 2022
  • Ward suggests adding in lean sources of animal protein, which tend to be richer in leucine, a muscle-building amino acid.
    — Danielle Blundell, Women's Health, 31 May 2023
  • Additionally, lean protein contains the amino acid leucine, which helps to burn belly fat.
    — Amber Smith, Discover Magazine, 23 Dec. 2022
  • These include leucine, valine, isoleucine and a handful of other amino acids your body cannot naturally produce.
    — Dallas News, 15 Feb. 2022
  • For example, high-quality leucine-rich proteins such as whey can help support muscle repair.
    — Tatiana Dias, Vogue, 18 Dec. 2025
  • Johnson recommends products that provide 2 to 3 grams of leucine per serving.
    — Jenny McCoy, Glamour, 8 July 2024
  • Soy protein is another suitable protein source that is high in leucine, an essential amino acid for muscle growth and repair.
    — Paul Kita, Men's Health, 5 Apr. 2023
  • All of these high-protein options are also rich in leucine, an essential amino acid involved in the growth and repair of muscle, skin, and bone.
    — Outside Online, 17 Feb. 2021
  • Branched-chain amino acids (BCAAs) are three critical amino acids known as leucine, isoleucine, and valine.
    — Amber Smith, Discover Magazine, 16 Nov. 2022
  • Branched-chain amino acids (BCAAs) are a class of three important amino acids known as leucine, isoleucine, and valine.
    — Amber Smith, Discover Magazine, 22 Dec. 2022
  • Each serving contains 20 grams of protein and is packed with essential amino acids like leucine and isoleucine, which aid in muscle recovery.
    — Kayla Hui, Health.com, 27 Jan. 2022
  • Corn and potato, meanwhile, are high in leucine, an amino acid that signals the first step for muscle-protein synthesis, Hertzler said.
    — Claire Bugos, Verywell Health, 4 Apr. 2023
  • This appears to be especially true of leucine, which research indicates has a unique role in your body’s ability to repair and build muscles.
    — Amy Schellenbaum, Popular Science, 8 Sep. 2020
  • There’s also astaxanthin combined with glutamine and leucine—amino acids that may also play a role in exercise recovery.
    — Isabel Vasquez Rd Ldn, Verywell Health, 9 July 2024
  • Three specific essential amino acids—leucine, isoleucine, and valine—are called Branched-Chain Amino Acids.
    — Shimite Obialo, Forbes.com, 26 May 2026
  • Milk, and in particular whey protein from milk, happen to be particularly high in leucine and other essential amino acids.
    — Alex Hutchinson, Outside Online, 15 Oct. 2024
  • There’s even some evidence to suggest that leucine may help improve muscle recovery and reduce inflammation.
    — Audrey Noble, Vogue, 30 Dec. 2023
  • Studies done on supplements like leucine, which some early research suggested could kickstart the muscle-building process inside cells, haven’t panned out.
    — Sara Chodosh, Popular Science, 3 Jan. 2019

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'leucine.' 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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