How to Use casein in a Sentence

casein

noun
  • It's packed with casein and whey proteins.
    — Brandi Jones, Verywell Health, 26 Feb. 2026
  • Meat and dairy forms of protein, like whey and casein, can't do that.
    — Cori Ritchey, Men's Health, 31 Mar. 2023
  • In the process, milk solids get strained out, making ghee lactose- and casein-free.
    — Rachel Khong, Bon Appetit, 14 Feb. 2017
  • The main protein in blue cheese is casein, which takes longer to digest.
    — Lauren O'Connor, Health, 18 Aug. 2025
  • There’s a gene called beta casein that’s one of the milk proteins.
    — Kim Zetter, WIRED, 10 Feb. 2010
  • Breast milk is of course far, far more complex than just casein and lactose.
    — Sarah Zhang, The Atlantic, 27 Feb. 2020
  • Avoid those with beeswax or casein, a milk product sometimes used in paint.
    — Paige Porter Fischer, Better Homes & Gardens, 22 Apr. 2025
  • Same goes for casein and whey, two types of protein in milk often used in candies.
    — Women's Health, 23 Jan. 2023
  • These solids can be washed and dried to create casein protein powders.
    — Carsen Joenk, Popular Science, 11 Jan. 2021
  • Protein shakes made with casein, the main protein found in cow’s milk, may be best before bed.
    — Korin Miller, Outside Online, 18 Dec. 2024
  • Some are even fortified with more leucine than most casein or whey powders on the market.
    — Paul Kita, Men's Health, 5 Apr. 2023
  • About 3% of milk is protein, and 80% of the protein is casein.
    — Kelly Meyerhofer, jsonline.com, 15 Oct. 2025
  • That allows bromelain to focus on the whey and casein proteins in it instead of the ones in your mouth.
    — Ashia Aubourg, SELF, 15 June 2023
  • Wheat products or anything else with gluten were out, as were dairy foods containing the milk protein casein.
    — Jacqueline Stenson, NBC News, 22 Sep. 2019
  • Whey is digested more quickly than other protein products, such as soy or casein.
    — Mary Choy, Health, 21 Oct. 2024
  • Milk contains whey and casein proteins, which stimulate muscle growth.
    — Jillian Kubala, Health, 15 Apr. 2025
  • Good choices include whey or casein protein powder, skim milk, and Greek yogurt.
    — Amber Smith, Discover Magazine, 22 Dec. 2022
  • Skyr’s modern form (high in casein protein, low in sugar) carries that lineage forward.
    — Marisa McMillan, Outside, 29 Dec. 2025
  • Despite its slower release, research has shown casein promotes overnight muscle growth.
    — Sarah Garone, Health, 26 Feb. 2026
  • It’s made with a blend of whey protein isolate and micellar casein to fuel your muscles while keeping cravings at bay.
    — The Salt Lake Tribune, 1 Nov. 2022
  • The milk protein isolate includes both whey and casein, with casein making up 80% of the protein found in milk.
    — Shushy Rita Setrakian Ms, Rd, Health, 9 Aug. 2024
  • In people with a milk allergy, the immune system may overreact to one or more of milk's proteins, such as casein or whey.
    — Lauren O'Connor, Ms, Health, 30 Mar. 2025
  • At that point, the caseins clump together to form solid fatty curds surrounded by a watery liquid.
    — Jennifer Ouellette, Ars Technica, 3 Apr. 2024
  • In addition, casein is known to promote satiety, thus helping to stave off nighttime hunger and reduce the urge to snack between meals.
    — Veronica Cristino, Vogue, 9 Apr. 2025
  • Common fining agents including gelatin, which is an animal product, and casein, which is a protein from milk.
    — Tirion Morris, The Arizona Republic, 8 Dec. 2020
  • An allergic reaction to milk happens when the immune system reacts against proteins in the milk, such as casein and whey.
    — Yaakov Katz, Newsweek, 17 Jan. 2025
  • Then add some extra protein power by choosing from whey, casein, soy, pea, or rice powders - try an unsweetened variety to keep it healthy.
    — Amber Smith, Discover Magazine, 28 Feb. 2023
  • During the cheese-making process, the casein – which forms solid curds – is separated from the liquid whey, which is dried to form a powder.
    — ABC News, 12 June 2026
  • Specifically, the chip will be inserted in the casein label, located on the rind.
    — Michelle Cheng, Quartz, 27 May 2022
  • Meanwhile, casein is a slow-digesting protein but provides a sustained release of amino acids into the blood sugar.
    — Kirsten Nunez, Martha Stewart, 2 May 2026

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