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 (măk′rō-no͞o′trē-ənt, -nyo͞o′-)
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.


(Biochemistry) any substance, such as carbon, hydrogen, or oxygen, that is required in large amounts for healthy growth and development


(ˌmæk roʊˈnu tri ənt, -ˈnyu-)

1. any of the nutritional components required in relatively large amounts: protein, carbohydrate, fat, and the essential minerals.
2. any of the chemical elements required by plants in relatively large amounts: nitrogen, phosphorus, and potassium.


- One required in relatively large amounts by organisms, e.g. carbohydrates, fats, and proteins.
See also related terms for organism.
References in periodicals archive ?
However, changing the composition of the macronutrients did not make a difference, suggesting that it does not matter whether the diet is high or low in healthful fats or carbs, but that the most important factor for improving heart injury is the general healthfulness of the diet.
In the study published in the journal, 'International Journal of Cardiology,' researchers at Beth Israel Deaconess Medical Center (BIDMC) examined the effects of three healthy diets emphasising different macronutrients - carbohydrates, proteins, or unsaturated fats - on a biomarker that directly reflects heart injury.
In a small in-patient study at the National Institutes of Health's Metabolic Clinical Research Unit, 20 people (10 male, 10 female) were provided a special diet, then monitored for four weeks regarding calories, sugar, fat, fiber, and macronutrients. None of the participants were overweight.
What made me earn the invite is that a test had showed his soil was lacking some major macro-nutrients.The three primary macronutrients required by the plant are nitrogen for vegetative growth, phosphorus for root development and potassium for flowering and fruiting.
sevac nd - ib - eds vaccine against newcastle disease (la sota), infectious bronchitis of chickens (m41) and egg-laydown syndrome (b8 / 78) 75,000 doses complex vitamin supplement containing vitamins, micro - and macronutrients, amino acids 100 liter (a, s) 3.
It was discovered that fasting did not significantly affect the level of macronutrients, which are nutrients needed in large quantities for growth and energy, and include proteins, carbohydrates and fat.
He discusses the fundamental principles of getting control of one's diet; the basics of nutrition, including the low-carbohydrate revolution, macronutrients, metabolism, sugar and fructose, saturated fat, hunger, and thermodynamics and calories; the low-carbohydrate diet for diabetes, metabolic syndrome, and cancer; and problems in nutritional science, including flawed studies, the use of observational studies and the concepts of association and causality, errors to look for in scientific papers, inappropriate use of statistics, the practice of intent-to-treat in the medical literature, and what to look for in the medical literature, particularly in the popular media.
(2001)was used, and after calculated the amount of organic fertilizer as a function of the N, P and K macronutrients, individually, the calculation of the mean was performed, whose value was defined as 100% of the recommendation .The amounts of manure as a function of the macronutrient contents observed in this material were 5,263; 87,719 and 13,158Kg [ha.sup.-1]respectively for the contents of N, P and K, and the mean was 36,000 Kg [ha.sup.-1].
The science behind Equalution looks at both the macronutrients and micronutrients that are eaten each day.
The American Diabetes Association notes that an optimal mix of macronutrients is yet to be identified, and many other considerations should come into play, including cultural and personal preferences, readiness to change, and the importance of maintaining the social and physical pleasures of eating.
Whatever type of diet you currently follow, you're already eating "macros" (short for macronutrients).