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

Recent Examples on the Web

Protein bars meant for weight gain or meal replacements are generally much higher in calories and macronutrients compared to those meant to be eaten as snacks. —Jillian Kubala, Health, 23 Apr. 2026

And here too, two crucial macronutrients take center stage. —Randi Gollin, Martha Stewart, 22 Apr. 2026

Protein is essential for building muscle, but one macronutrient alone isn’t enough. —Stephanie Brown, Verywell Health, 20 Apr. 2026

Protein is a key macronutrient the body needs to build and maintain muscle, but omega-3 fatty acids and iron are also critical. —Kaitlin Sullivan, NBC news, 14 Apr. 2026

Word History

Etymology

macro- + nutrient entry 2

First Known Use

1942, in the meaning defined above

Rhymes for macronutrient

• micronutrient
• nutrient

Medical 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