macronutrient

noun

mac·​ro·​nu·​tri·​ent ˌma-krō-ˈnü-trē-ənt How to pronounce macronutrient (audio)
-ˈnyü-
: a chemical element or substance (such as potassium or protein) that is essential in relatively large amounts to the growth and health of a living organism compare micronutrient

Examples of macronutrient in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Indeed, research suggests that perimenopausal and menopausal women who follow high-protein diets tend to lose less muscle mass and gain less weight compared to those who don’t prioritize the macronutrient. Marygrace Taylor, Flow Space, 18 July 2025 Studies show that protein is the most filling macronutrient. Julie Marks, Verywell Health, 10 July 2025 Vavrek adds that all meals should still be balanced and include all macronutrients and food groups. Korin Miller, Outside Online, 24 May 2025 Remember with these amendments that nitrogen is the primary macronutrient needing to be resupplied, as phosphorus and potassium take time to deplete. Anthony Reardon, Kansas City Star, 13 May 2025 See All Example Sentences for macronutrient

Word History

Etymology

macro- + nutrient entry 2

First Known Use

1942, in the meaning defined above

Time Traveler
The first known use of macronutrient was in 1942

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Cite this Entry

“Macronutrient.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/macronutrient. Accessed 29 Jul. 2025.

Medical Definition

macronutrient

noun
mac·​ro·​nu·​tri·​ent -ˈn(y)ü-trē-ənt How to pronounce macronutrient (audio)
: a substance (as a protein, carbohydrate, or fat) required in relatively large quantities for growth, energy, and health compare micronutrient

More from Merriam-Webster on macronutrient

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