Question

what is then role of macro- nutrients​

Answer 1

$Answer$

Nutrients are substances needed for growth, energy provision and other body functions.

Macronutrients are those nutrients required in large amounts that provide the energy needed to maintain body functions and carry out the activities of daily life.

There are 3 macronutrients – carbohydrates, proteins and fats.

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Answer 2

Macronutrients are those nutrients required in large amounts that provide the energy needed to maintain body functions and carry out the activities of daily life. There are 3 macronutrients – carbohydrates, proteins and fats. ... Energy comes from foods rich in carbohydrate, protein and fat