Page 222 - Health, Population and Environment Education 9

9.2 Food and Nutrition

Food is one of the most important things essential for survival of all living things. Life
of living beings is not possible without having food. Food helps in the growth and
development of living beings as well as gives energy to do different activities.
The human beings also need food to survive as well as to get energy to do different
activities. Lack of sufficient amount of food makes us the victim of malnutrition.
Malnutrition leads to different types of diseases. The food that we eat should contain
different types of nutrients like protein, carbohydrates, calcium, phosphorus, vitamins,
fats, etc. For proper functioning of the organs and systems in the body, we need all these
nutrients in the food. These nutrients of food are transported to all the cells and tissues
of the body by means of blood. Food also helps to keep the body healthy by preventing
different types of diseases. It also helps to run the systems of the body like digestive
system, respiratory system, circulatory system, etc.

Basic objectives of consumption of food
1. To build up the body.
2. To get energy.

3. To regulate the body functions.
4. To prevent diseases.
5. To perform psychological activities.

6. To do social and cultural activities.
7. To work like medicine.
8. To work as a personality indicator.

Classification of food

a. On the basis of its origin
i. Food obtained from animals
Milk and milk products like curd, cheese, ghee, butter, eggs, meat, fish, etc.

Fig: 2
Meat Potato Fish
222 GREEN Environment Population and Health Education Book-9