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.
This is especially true of protein, a macronutrient that's needed for satiety, muscle maintenance, and more. Kirsten Nunez, Martha Stewart, 15 Mar. 2026 Inorganic fertilizers are usually less expensive than organic fertilizers and provide all the macronutrients roses need to thrive. Mary Marlowe Leverette, Southern Living, 6 Mar. 2026 These combinations offer an ideal macronutrient balance that supports muscle health and helps maintain a feeling of fullness. Leeann Weintraub, Daily News, 5 Mar. 2026 That means prioritizing quality sleep, sufficient calories, and enough macronutrients to support repair and growth. Danielle Zickl, Health, 26 Feb. 2026 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 17 Mar. 2026.

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

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