6th Class Science Components of Food Deficiency Diseases

Deficiency Diseases

Category : 6th Class

*     Deficiency Diseases


The people, who do not get all the nutrients in required amount, suffer from deficiency diseases.

Look at the following pictures:




These people are suffering from nutrients deficiency diseases.

Look at the following table:


Deficiency diseases Causes



Night blindness






Lack of proteins

Lack of proteins and carbohydrates

Lack of vitamin A

Lack of vitamin B1

Lack of vitamin C

Lack of vitamin D and calcium

Lack of iodine

Lack of iron


Note: More than one third of the world’s malnourished children live in India.

The UN estimates that 2.1 million Indian children die before reaching the age of 5 every year.


Obesity: Diets that contain high-calorie foods with little nutritional value, such as fast foods, sugary drinks, processed foods, refined flours and unhealthy fats, can cause weight gain called obesity.

Anaemia is caused because of:







      Anaemia is caused because of

(a) Lack of calcium

(b) Lack of phosphorus

(c) Lack of iron

(d) Lack of iodine

(e) None of these


Answer: (c)



      Which one of the following food is a rich source of fat?

(a) Butter

(b) Ghee

(c) Mustard oil

(d) All of these

(e) None of these


Answer: (d)




Our food is composed of carbohydrates, fats', proteins, vitamins, water roughages minerals.

Carbohydrates and fats provide energy to our body.

Proteins are known as body building material.

A balance diet contains adequate amount of nutrients, roughage and water.

Kwashiorkor is caused by lack of proteins.

Night blindness is caused by lack of vitamin A..

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