Most of our food is made of these things. We get food from plants and animals. Depending on what grows easily at which place, different things are eaten at different places. We not only eat different things but we also use the same things to prepare a variety of food items.

1. FOODS WE EAT
ENVIRONMENTAL STUDIES
CLASS III-CBSE

2. Food
Food is a nutritive substance taken by an organism for
growth work, repair and maintaining life processes. Food is a
kind of fuel for the living things. Just as petrol fuel for our car,
in the same way, food is a fuel for our body.

3. All living organisms such as plants and animals require food.
So, food is essential for all living organisms. Most of our food
is made of these things. We get food from plants and animals.

4. We get food from plants and animals.

5. Food helps us to
To Grow
To give Energy
To be Healthy
The useful substances in food that provide you all these three are
called Nutrients.

6. Nutrients

7. There are different types of Nutrients present in our
food. These are also called components of food.
Six types of components:
Carbohydrates
Proteins
Fats
Vitamins and Mineral
Water
Roughage

8. Carbohydrates are one of the main types of nutrients. They
are the most important source of energy for your body. Your
digestive system changes carbohydrates into glucose (blood
sugar).
Your body uses this sugar for energy for your cells, tissues and
organs. It stores any extra sugar in your liver and muscles for
when it is needed.

10. CARBOHYDRATES
Mainly provide energy to our body
Carbohydrates – manly they provide instant energy to our
body .Glucose is present in the form of starch and sugar.

11. RICE

12. WHEAT

13. POTATO AND SWEET POTATO

14. MAIZE AND SUGAR CANE

15. PROTEINS
Proteins are needed for the growth and repair of our
body. There are called Body building food.

16. Protein is an important component of every cell in the body. Hair
and nails are mostly made of protein. Your body uses protein to
build and repair tissues.
You also use protein to make enzymes, hormones, and other body
chemicals. Protein is an important building block of bones, muscles,
cartilage, skin, and blood.
PROTEINS

18. Milk: Milk is very nutritious and is a rich source of
protein. It also contains calcium for healthy bones.
Egg: Chicken eggs are a rich source of protein and
vitamins.

19. Meat: Meat of animals such as goat, chicken, fish and
prawns are eaten.
Pulses: Pulses are part of a healthy, balanced diet and have
been shown to have an important role in preventing
illnesses such as cancer, diabetes and heart disease.
Pulses are a low fat source of protein.
MEAT & PULSES

20. • Paneer : paneer is called as cottage cheese.

21. FATS - Stored food
•The foods we eat contain nutrients that provide energy and
other substances the body needs. Most of the nutrients
in food fall into three major groups: proteins, fats, and
carbohydrates.
•The body uses fat as a fuel source, and fat is the
major storage form of energy in the body.

22. Food Items Rich In Fats

23. •Obesity is generally caused by eating too much and
moving too little. If you consume high amounts of energy,
particularly fat and sugars, but do not burn off the energy
through exercise and physical activity, much of the surplus
energy will be stored by the body as fat.

24. VITAMINS
• Vitamins help in protecting our body against diseases.
• They also keep our eyes, bones teeth and gums healthy.
• Some of vitamins are soluble in water whereas others are
• soluble only in fats or oils, so, on the basis of their solubility, all
the vitamins can be divided into two classes or two groups;
water soluble vitamins and fat soluble vitamins.

25. Water soluble vitamins and fat soluble vitamins.
1. Water soluble vitamins are;- vitamin B-complex and
Vitamins C
2. Fat soluble vitamins are;- Vitamin-A, Vitamin-D,
Vitamin-K Vitamin-E Called pernicious anemia. The
various source of this vitamin are : meat, liver milk &
eggs etc.

26. Vitamin A is a fat-soluble vitamin that is good for healthy
vision, skin, bones and other tissues in the body. Vitamin A
often works as an antioxidant, fighting cell damage, but it
also has many other uses.

27. B vitamins play a vital role in maintaining good health and well-
being. As the building blocks of a healthy body, B vitamins have a
direct impact on your energy levels, brain function, and cell
metabolism. Vitamin B complex helps prevent infections and helps
support or promote: cell health.

28. The body uses vitamin C in many different ways. Vitamin C is
needed by the body to form collagen. According to the NIH, the body
also uses vitamin C to make skin, tendons, ligaments and blood
vessels. It also uses this vitamin to repair and maintain cartilage,
bones and teeth, to heal wounds and to form scar tissue.

29. Vitamin D is a group of fat-soluble secosteroids responsible for
increasing intestinal absorption of calcium, magnesium, and
phosphate, and multiple other biological effects.

30. Vitamin E oil is an ingredient in many skincare products; especially
those that claim to have anti-aging benefits. Vitamin E supplements
may prevent coronary heart disease , support immune function,
prevent inflammation , promote eye health, and lower the risk of
cancer.

31. Vitamin K is a group of structurally similar, fat-soluble vitamins
that the human body requires for complete synthesis of certain
proteins that are prerequisites for blood coagulation and which the
body also needs for controlling binding of calcium in bones and
other tissues.

32. MINERALS
• Minerals are required in small amounts in our body.
• They are essential for proper growth of body and for
maintaining good health.

34. water

35. Half of our weight is water.
Enables you to swallow and digest foods.
 Absorb other nutrients, and eliminate wastes.
 The typical suggestion is we must drink 6-8 glass of water every
day.

36. Roughage does not provide any nutrients to our body but it is an
essential ingredient of our food as it helps our body to get rid of un
digested food.
So we need to have a little of all kinds of food every day to get all the
Nutrients and roughage etc. This type of diet is called A balanced
diet .A balanced diet should contains 50%
carbohydrate,35%fats,12%protiens. 3% vitamins & minerals and
sufficient amount of water.
Roughage

38. •So we need to have a little of all kinds of food every day to get all
the Nutrients and roughage etc. This type of diet is called A balanced
diet.
•A balanced diet should contains 50% carbohydrate, 35%fats,
12%protiens, 3% vitamins & minerals and sufficient amount
of water.