macronutrient
noun
mac·ro·nu·tri·ent
ˌma-krō-ˈnü-trē-ənt 
-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
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But in the big picture, these guidelines are not about adjusting macronutrients.
—
Vishal Khetpal, STAT, 30 Jan. 2026
Anything packed with protein is popular right now, especially these fluffy flapjacks, which offer a whopping 20 grams of the macronutrient per four-pack.
—Michele Laufik, Martha Stewart, 28 Jan. 2026
Protein is one of the body’s three macronutrients, along with carbohydrates and fat.
—Daryl Austin, USA Today, 19 Jan. 2026
The menu, which follows a recent surge in demand for protein and other macronutrients, includes options with extra iron, omega-3 fatty acids and antioxidants.
—Los Angeles Times, 16 Jan. 2026
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Vishal Khetpal, STAT, 30 Jan. 2026
Anything packed with protein is popular right now, especially these fluffy flapjacks, which offer a whopping 20 grams of the macronutrient per four-pack.
—Michele Laufik, Martha Stewart, 28 Jan. 2026
Protein is one of the body’s three macronutrients, along with carbohydrates and fat.
—Daryl Austin, USA Today, 19 Jan. 2026
The menu, which follows a recent surge in demand for protein and other macronutrients, includes options with extra iron, omega-3 fatty acids and antioxidants.
—Los Angeles Times, 16 Jan. 2026
See All Example Sentences for macronutrient
Cite this Entry
“Macronutrient.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/macronutrient. Accessed 15 Feb. 2026.
Copy CitationMedical Definition
macronutrient
noun
mac·ro·nu·tri·ent
-ˈn(y)ü-trē-ənt
: a substance (as a protein, carbohydrate, or fat) required in relatively large quantities for growth, energy, and health compare micronutrient
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