Macronutrients Definition. The term macronutrients is used frequently in the health and fitness world and for the right reasons. They contribute to the bulk energy needed for a living organisms metabolic system. With the exception of vitamin D micronutrients are not produced in the body and must be derived from the diet 1.
In the context of health and fitness macronutrients are most often defined to be the chemical compounds that humans consume in large quantities that provide bulk energy.
Macro meaning large alludes to the fact that these nutrients are needed in larger quantities. There are three broad classes of macro-nutrients. Proteins carbohydrates and fats.
Fat has a food energy content of 38 kilojoules per gram 9 kilocalories per. Collins English Dictionary - Complete Unabridged 2012 Digital Edition William Collins Sons Co. They are the nutrients you use in the largest amounts.
Protein and Amino Acids. Carbohydrates contain 4 kcal per gram. Our bodies need these nutrients in larger quantities.
Your body needs these nutrients in larger amounts in order to function properly as macro means large. Micronutrients vitamins and minerals are consumed in relatively smaller quantities but are essential to body processes. Aside from water every macronutrient provides energy.
A substance required in relatively large amounts for the normal growth and development of an organism. Macronutrients are fats carbohydrates proteins and water. Macronutrients are the nutrients we need in larger quantities that provide us with energy.
There are three types of macronutrients. In addition all of these nutrients provide your body with energy measured in the form of calories or kcals. Specifically they refer to carbohydrates proteins and fats.
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