a) What is deficiency disease?

b) Name the deficiency disease caused due to
proteins, carbohydrates and fats.

a) Nutrients provide us energy and help in growth and repair of our body. If these nutrients are not taken in optimum quantities for a longer time it leads to deficiency. Diseases that occur due to deficiency of nutrients is known as deficiency disease.

b) Deficiency of protein: Stunted growth, discolouration of hair and diarrhoea.
Deficiency of carbohydrates: Weak body and low energy.
Deficiency of fats: Weak body, increase in hair fall and dry skin.