mac·​ro·​nu·​tri·​ent | \ ˌma-krō-ˈnü-trē-ənt How to pronounce macronutrient (audio) , -ˈnyü- \

Definition of macronutrient

: 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 This macronutrient is an integral part of every cell in the human body. Carolyn L. Todd, SELF, "Does It Make a Difference if You Get Your Protein from Plants or Animals?," 28 Aug. 2019 Alpha-keto acids can be converted into glucose and used for immediate fuel if necessary, when the body is in a fasting state or not getting enough calories coming in from other macronutrients, Linsenmeyer says. Carolyn L. Todd, SELF, "Here's What Actually Happens in Your Body When You Eat Protein," 20 June 2019 In one study, women without PMS increased their intake of energy and fat, while women with PMS showed increase in total energy and all macronutrients. Sara Twogood, Quartz, "The science behind why you crave carbs when you’re on your period," 7 Aug. 2019 Optavia uses similar foods with an identical macronutrient profile, but consumers can sign up for the plan themselves online. Caroline Picard, Good Housekeeping, "What Is the Optavia Diet? Why You Should Skip It for Weight Loss, According to a Dietitian," 30 July 2019 Diets that focus on carbohydrates or fat, by contrast, tend to focus on how different combinations of macronutrients trigger satiety hormones. Tamar Haspel, Washington Post, "How processed food makes us fat," 17 July 2019 Nobody understands fully how macronutrients, when isolated, impact our diverse bodies. Chase Purdy, Quartz, "The American diet is having an unhealthy love affair with protein," 20 July 2019 And the internecine battle among macronutrients is only heating up. Chase Purdy, Quartz, "The American diet is having an unhealthy love affair with protein," 20 July 2019 According to her, diets based on decreasing calorie density — which comes down to eating foods that have more water and less fat — are more effective than any of the diets that manipulate macronutrients. Tamar Haspel, Washington Post, "How processed food makes us fat," 17 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'macronutrient.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of macronutrient

1942, in the meaning defined at sense 1

History and Etymology for macronutrient

macro- + nutrient entry 2

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The first known use of macronutrient was in 1942

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Statistics for macronutrient

Last Updated

17 Nov 2019

Cite this Entry

“Macronutrient.” The Dictionary, Merriam-Webster Inc., Accessed 6 December 2019.

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More Definitions for macronutrient


mac·​ro·​nu·​tri·​ent | \ -ˈn(y)ü-trē-ənt How to pronounce macronutrient (audio) \

Medical Definition of macronutrient

: a substance (as a protein, carbohydrate, or fat) required in relatively large quantities for growth, energy, and health — compare micronutrient

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very cautious or careful

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