Question

Explain macro-nutrients role in our diet. 

Answer 1

Role of Macronutrients:

1. Carbohydrates: Main source of energy (4 kcal/g); fuel for muscles and central nervous system; help in fat metabolism and spare protein.
2. Proteins: Building blocks of the body; repair tissues; form enzymes, hormones and antibodies; provide energy.
3. Fats: Concentrated energy source (9 kcal/g); store energy; insulate the body; carry fat-soluble vitamins A, D, E and K.
4. Water: Regulates body temperature; transports nutrients; removes wastes; forms body fluids.