CLASSIFICATION OF FOOD IN FOUR DIFFERENT BASIS 1 ON THE BASIS OF ORIGIN 2 ON HE BASIS OF CHEMICAL COMPOSITION 3 ON THE BASIS OF PREDOMINANT FUNCTION 4 ON THE BASIS OF NUTRITIVE VALUE WITH EXAMPLES AND PICTURES FOR BETTER UNDERSTANDING

1. Presented by
Ms. VICTORIA ANGELA FERNANDEZ
CLINICAL INSTRUCTOR

3.  ANIMAL ORIGIN
 They are used as food
directly or indirectly
 Directly –meat,fish, chicken
etc
 Indirect – milk, honey, milk
products etc.

4.  PLANT ORIGIN
 Many plant &plant part are eaten as a food.
 Seeds are good source of food .
 Excepts apple and cherry seeds
 Fruits are ripened ovaries of plants
 Vegetables are another most natural way of getting foods.

6.  PROTEINS:
 It is required for growth in children and maintenance
of body weight in adults.
 It constitute about 20% of body weight.
 1 gram Proteins provide 4 Kcal of energy.
 It is made up of simpler chemical substances known
as amino acids.

8.  CARBOHYDRATES:
 It forms the bulk of our food and are the main source
of energy.
 It provides about 50-70% of energy value.
 Glucose is derived from the digestion of
carbohydrates.
 1gram of carbohydrates provide 4 Kcal.

10.  FATS:
 Oils and fats are serve mainly as the source of
energy.
 It is essential for maintaining good health.
 1gram of carbohydrates provide 9 Kcal.

12.  MINERALS:
 Human body contain more than 50 chemical
elements.
 These are required for growth ,repair and regulation
of vital body functions.
 Important minerals are sodium, calcium, phosphorus,
potassium, iron, iodine etc.

14.  VITAMINS:
 These are characterized as essential nutrients.
 They do not yield energy but enable the body to
use other nutrient.
 Each vitamin Has specific functions to perform.

16.  WATER:
 Two-third of our body is made up of water.
 Many nutrient like vitamin B and C are carried about in
the body by water,and many chemical process also require
water.
 It regulates the body temperature.

18.  Body building food:
 Food rich in protein.
 They are responsible for building and
repairing of body tissues.

20.  Energy yielding food:
 Food rich in carbohydrate and fats.
 They provide maximum energy 70-90% to
our body.

22.  Protective food:
 Food rich in proteins, vitamins and minerals.
 They provide protection from specific
deficiency disorder,and boost our immunity .