Answer:
necessary for good health and proper functioning of the body.
a necessary nutrient that can be obtained only from the diet.
Explanation:
The classes of food substances that the body cannot make or can only produced in very limited quantities for good health and proper functioning,and body maintenance are called the essential.
CHO,Protein,fats, minerals,vitamins and water belong to the essential nutrients. Dietary fibre is also added to aid proper functioning of the digestive system.
Generally,CHO,Protein,and Fats are needed in largest amount.Others are also needed ,but in smaller quantities compare to the first three.
The CHO,Protein and Vitamins are major macromolecules to be digested for absorption.Vitamins can be water or fat solube,while the minerals can be macro or micro in quantity.
