proteins made of amino acids : structural , transport , regulatory
carbohydrates types simple and complex energetic function
simple have a sweet taste and complex contain fibre
lipids types fats there are two types unsaturated oils and saturated animal origin; , membrane lipids,with regulatory
micronutrients: Mineral salts structural , regulatory F
Water solven ;transport , regulatory of metabolism and regulatory of the body function.
one gram of fat 9 kcal ; carbohydrate 3,75 kcal and protein 4 kcal