25. Define and classified Food and Nutrition?

Ans: Food: Food is the composite mixture of edible substances which when taken are digested absorbed giving energy, provide growth and repair of wear and tear of the body and also protects body form infection.

Types of food:

 By function

a.     Energy yielding food- Carbohydrate, fat, protein.

b.    Body building food- protein and minerals.

c.     Protective food- Vitamins, minerals and protein.

 By origin

a.     Animal origin.

b.    Vegetable origin.

Function of food----

a.     It satisfy hunger

b.    It is Essential for growth of the body

c.     It provides energy for production of heat and other physical activities

d.    It is Essential for repair of daily wear and tear

e.     It protects body various disease