mac·​ro·​nu·​tri·​ent ˌma-krō-ˈnü-trē-ənt How to pronounce macronutrient (audio)
: 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 While creating a balanced, nutritious girl dinner is possible, experts agree that often these snack plates lack enough calories or macronutrients to be considered a full meal. Lauren Manaker, Health, 24 July 2023 The macronutrient helps support your skin health, repair muscles, and keep you full and satisfied. Ashia Aubourg, SELF, 7 Nov. 2023 January works by creating digital models of user physiology, using empirical evidence of how their glucose levels reacts to combinations of macronutrients—like fat, protein, and carbohydrates—to predict responses to different foods. Erin Prater, Fortune Well, 8 Oct. 2023 Diets lacking balance with disproportionate amounts of carbohydrates and other macronutrients can increase the risk of diabetes, obesity, and heart problems in dogs. Amber Smith, Discover Magazine, 22 July 2023 That’s because fat is the most energy-dense of the macronutrients. Georgia Day, Vogue, 22 Sep. 2023 Finally, the protein and fat from the walnuts also help keep you full, since your body doesn’t process those macronutrients as quickly as carbs. Ashia Aubourg, SELF, 15 Sep. 2023 Be sure to build in a variety of vegetables, fruits, and other whole foods daily to optimize your intake of vitamins, minerals, fiber, antioxidants, and macronutrients. Cynthia Sass, Mph, Rd, Health, 5 Sep. 2023 The three types of macronutrients are carbohydrates, fats, and your favorite for muscle-building, proteins. Brett Williams, Men's Health, 13 Mar. 2023 See More

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

Word History


macro- + nutrient entry 2

First Known Use

1942, in the meaning defined above

Time Traveler
The first known use of macronutrient was in 1942

Dictionary Entries Near macronutrient

Cite this Entry

“Macronutrient.” Dictionary, Merriam-Webster, Accessed 4 Dec. 2023.

Medical Definition


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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