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Grouping the Nutrients. Carbohydrates, proteins, and fats are called macronutrients, because they're large, and energy nutrients because they provide the fuel your body needs to do things. Vitamins and minerals are called micronutrients because they're much smaller in comparison.
A good nutritional plan gives the body all the micro-nutrients(vitamins and minerals) and macro-nutrients (protein, fats and carbohydrates) it needs to live. Without the correct balance of those your body will adapt and create unwanted long term damage to its DNA.