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an essential nutrient that has a large minimal daily requirement, including proteins, fats, carbohydrates, and water. The term sometimes specifically includes, and sometimes specifically excludes, minerals required in amounts greater than 100 mg daily: calcium, chloride, magnesium, potassium, phosphorus, sodium, and sulfur.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
A substance required in relatively large amounts for the normal growth and development of an organism. Macronutrients for animals include fat, carbohydrate, and protein, while for most plants they include chemical elements such as carbon, hydrogen, oxygen, nitrogen, and phosphorus.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
macronutrientA general term for an essential dietary component—protein, essential fats and carbohydrates—which is consumed in large amounts.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
macronutrientNutrition An essential dietary component—proteins, fats, carbohydrates consumed in large amounts. See Diet. Cf Micronutrient, Non-nutritive dietary component.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
Nutrients required in the greatest amount; e.g., carbohydrates, protein, fats.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
macronutrientany element required in large quantities for growth, such as nitrogen or potassium in plants. Compare MICRONUTRIENT.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005