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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
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Recent Examples of macronutrient from the Web
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Our macronutrient guidelines are ones that a registered dietitian and the USDA deem appropriate for the majority of people.
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Nitrogen, phosphorus and potassium are the macronutrients or primary elements.
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Potassium Sulfate Potassium is a plant macronutrient.
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.
First Known Use of macronutrient
1942
Medical Dictionary
macronutrient
playMedical Definition of macronutrient
: a substance (as a protein, carbohydrate, or fat) required in relatively large quantities for growth, energy, and health—compare micronutrient
Learn More about macronutrient
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Britannica.com: Encyclopedia article about macronutrient
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