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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Protein is an essential macronutrient that acts as the building block for muscle, bone, cartilage, and skin.
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Barbie Cervoni, Verywell Health, 7 July 2025
Fertilizer, compost, and aged manure contain valuable nutrients that plants need to grow, including the NPK macronutrients—nitrogen, potassium, and phosphorus—that help plants produce cells and influence how nutrients are transported within the plant.
—Lauren Landers, Better Homes & Gardens, 7 July 2025
Cassava is an excellent source of a few essential macronutrients, and could certainly be part of a balanced dietary pattern.
—Caroline C. Boyle, USA Today, 26 June 2025
And while eating a balanced, whole-foods diet rich in key macronutrients, vitamins, and essential amino acids (think eggs, dairy, legumes, vegetables, fruit, whole grains, meat, and fish) is the best way to support collagen production, this single ingredient powder is a close second.
—Brianna Peters, Vogue, 1 July 2025
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Barbie Cervoni, Verywell Health, 7 July 2025
Fertilizer, compost, and aged manure contain valuable nutrients that plants need to grow, including the NPK macronutrients—nitrogen, potassium, and phosphorus—that help plants produce cells and influence how nutrients are transported within the plant.
—Lauren Landers, Better Homes & Gardens, 7 July 2025
Cassava is an excellent source of a few essential macronutrients, and could certainly be part of a balanced dietary pattern.
—Caroline C. Boyle, USA Today, 26 June 2025
And while eating a balanced, whole-foods diet rich in key macronutrients, vitamins, and essential amino acids (think eggs, dairy, legumes, vegetables, fruit, whole grains, meat, and fish) is the best way to support collagen production, this single ingredient powder is a close second.
—Brianna Peters, Vogue, 1 July 2025
See All Example Sentences for macronutrient
Cite this Entry
“Macronutrient.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/macronutrient. Accessed 19 Jul. 2025.
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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