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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.
macronutrient/mac·ro·nu·tri·ent/ (-noo´tre-ent) an essential nutrient required in relatively large amounts, such as carbohydrates, fats, proteins, or water; sometimes certain minerals are included, such as calcium, chloride, or sodium.
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.
Etymology: Gk, makros + L, nutriens, food that nourishes
nutrient required in the greatest amounts: carbohydrate, protein, fat or lipid, and water. See also macroelement.
macronutrientA general term for an essential dietary component—protein, essential fats and carbohydrates—which is consumed in large amounts.
macronutrientNutrition An essential dietary component—proteins, fats, carbohydrates consumed in large amounts. See Diet. Cf Micronutrient, Non-nutritive dietary component.
Nutrients required in the greatest amount; e.g., carbohydrates, protein, fats.
macronutrientany element required in large quantities for growth, such as nitrogen or potassium in plants. Compare MICRONUTRIENT.
an essential nutrient that has a large minimal daily requirement (greater than 100 mg for a ruminant); calcium, phosphorus, magnesium, potassium, sodium and chloride are macronutrients.