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Components of Food Class 6 Notes CBSE Science Chapter 2 (Free PDF Download)

Last updated date: 15th Jul 2024
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Exam - Focused Revision Notes for CBSE Class 6 Science Chapter 2 - Components of Food

NCERT Class 6 Science Notes Chapter 2 - Components of Food have been extensively prepared on the latest guidelines of CBSE. Prepared by expert teachers, the Components of Food Class 6 Notes PDF have detailed step-by-step explanations for all the topics in the chapter. Class 6 Science Chapter 2 Notes include detailed definitions and explanations of all important concepts of Class 6 Science Chapter 2. Get the Components of Food Class 6 Notes PDF available for free to enhance your exam preparation.


Every NCERT Solution is provided to make the study simple and interesting on Vedantu. You can also download NCERT Solutions for Class 6 Maths which will help you to revise the complete syllabus and score more marks in your examinations.


Key Topics Covered in CBSE Class 6 Science Chapter 2 Components of Food 

Some of the important topics and subtopics covered in Science Class 6 Chapter 2 have been mentioned below.

  • What do Different Food Items Contain?

    • Test for Starch

    • Test for Protein

    • Test for Fats

  • What do Various Nutrients do for Our Body?

  • Balanced Diet

  • Deficiency Diseases 

Download CBSE Class 6 Science Revision Notes 2024-25 PDF

Also, check CBSE Class 6 Science revision notes for All chapters:

Access Class 6 Science Chapter 2 - Components of Food Notes


  • Food is required for the growth and maintenance of the body.

  • The food consumed varies according to the region (like hilly areas or coastal areas), age (like babies or children or old people), and physical conditions (ill health, sportsman, etc.) of the person. 

  • The substances present in the food which provide the necessary energy and nourishment for the growth, functioning, and maintenance of the body of an organism are termed as nutrients.

  • Food consists of different nutrients and each of them has a special function in the growth of the body.


Major Nutrients:

The major nutrients are listed as:

  1. Carbohydrates: 

  • They are the major group of nutrients that provides us energy for the functioning of the body. 

  • They are generally present in the form of sugar and starch in the food.

  • The test for the presence of carbohydrates in food can be done by adding a drop of iodine solution to the food. A blue-black colour indicates the presence of starch and carbohydrates.

  • The sources of carbohydrates in the food are whole grains like wheat, rice, vegetables, fruits, legumes, etc.


  1. Proteins:

  • They are the foundation for all the cells, muscles, and tissues and hence they are known as the building blocks of the body.

  • They are essential for the healthy development and repair of the muscles, tissues, organs, hormones, hair etc.

  • The test for the presence of protein in food can be done by adding two drops of copper sulphate solution and ten drops of caustic soda solution to the food. If it turns violet, it shows the presence of proteins. 

  • The sources of proteins in the food are milk, cheese, white meat like chicken, seafood, like prawns, eggs, almonds, beans, soybeans, peas, etc.


  1. Fats:

  • They provide the body with the required energy to do work.

  • They are harmful if taken in large quantities.

  • The presence of fat in the food can be known if the food leaves an oily stain on the paper.

  • The sources of fats in the food are from animals like meat, butter, ghee, eggs, etc. and from plants like groundnuts, vegetable oil, coconut oil, nuts, etc.


  1. Minerals: 

  • These are the components that are required by our body in small amounts. They are very important for the proper growth and development of the body.

  • Various minerals are required for different purposes. Like calcium for the bones and teeth, iron for red blood cells, and iodine for the functioning of the thyroid gland.

  • The sources of some of the minerals in the food are Calcium in milk, eggs etc., phosphorus in milk, bananas etc., iron in spinach, apples etc., and iodine in fish, ginger etc.


  1. Vitamins: 

  • These are yet another group of substances that keeps the body safe from any diseases.

  • They are also essential for the health of the eyes, bones, teeth, and gums.

  • There are different types of vitamins with specific functions and they are required in small quantities only. Vitamin A is for the eyes, vitamin D for bones and teeth, and vitamin C for fighting diseases.

  • The sources of various vitamins in the food are Vitamin A in mango, carrot, papaya, fish oil, milk etc., vitamin B in rice, wheat etc., vitamin C in lemon, orange, tomato etc., vitamin D in milk, fish, eggs etc.


  1. Roughage: 

  • These are the dietary fibres that are present in the food. They are mainly provided by the plant's products and they don’t provide any nutrients to the body. 

  • Their role is to help the body remove the undigested food.

  • Water is yet another component of food that helps in the absorption of nutrients and removing the waste in the form of urine and sweat. 

  • The roughages is present in whole grains like oats, vegetables like beans, carrots etc, fruits like apples, pears etc.


Balanced Diet: 

  • Most of the food that is consumed has one nutrient as a major part like rice has more carbohydrates. So, for the proper functioning and development of the body and good health, a little bit of each nutrient is required.

  • A diet that has the right balance of the essential nutrients required by the body like carbohydrates, protein, fats, minerals and roughage is termed a balanced diet. A balanced diet contains whole grains like rice or wheat for carbohydrates, pulses like dal and meat or egg for proteins, and vegetables for minerals, vitamins, and fibres. 

  • Eating food that has too much of fats, like fried food or sweets, must be avoided as this can increase the body weight leading to a condition called obesity.


Deficiency Diseases: 

  • Having a diet which is lacking in any one of the nutrients may lead to its deficiency in the body. 

  • The diseases that are caused due to the deficiency of a nutrient over a long period of time are termed deficiency diseases. 

  • These diseases have various symptoms according to the nutrient that is deficient. This condition can be overcome by having a balanced diet.


Some Deficiency Diseases: 

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NCERT Class 6 Science Chapter 2 PDF

Class 6 is a very crucial phase of a student’s life. It is one of the most significant formative years of your school life. In this class, you will learn all fundamental concepts of various subjects such as Maths, Science, History, Geography, English, and Hindi. Hence, it’s important to be conceptually clear for all subjects. Vedantu has a large pool of expert Science teachers who have years of experience in tutoring Class 6 Science students. They are always up to date with any changes made in the syllabus, exam patterns, school-level exams, Olympiads and other prestigious competitive Science exams. 


Class 6 Science Notes Chapter 2 is based on the CBSE Syllabus. They contain details about all the topics covered in the chapter. They are very useful for all students in class 6.  Class 6 Components of Food Notes are comprehensive, exhaustive yet to the point. They have been drafted in lucid language to facilitate easier conceptual understanding and faster learning and improve a student’s retention rate.


Components of Food Class 6 Notes not only help you learn what is in your syllabus and what is laid out in your textbooks, but it also helps you develop knowledge beyond your textbook. Vedantu believes that learning important concepts early in life will give students an edge over their peers and sharpen their skills. They also believe that education should not be a burden on students; it should be a fun-filled natural process. Hence, Vedantu’s Class 6 Science Chapter 2 PDF is fun to read and learn. 


Vedantu’s Components of Food Class 6 PDF is not just a plain summary of the chapter. It is a solid study material prepared by vastly experienced expert science tutors. 


Class 6 Science Chapter 2 Components of Food Summary

  • Nutrients: It talks about the meaning of nutrients, their significance in the human body, and various types.

  1. Carbohydrates: The meaning of carbohydrates, different types of Carbohydrates, and their significance in the body.

  2. Fats: The meaning of fats, different types of fats, and their significance in the body.

  3. Minerals: The meaning of minerals, different types of minerals, and their significance in the body.

  4. Proteins: The meaning of proteins, different types of proteins, and their significance in the body.

  5. Vitamins: The meaning of vitamins, different types of vitamins, and their significance in the body.

  6. Roughage: The meaning of roughage, different types of vitamins, and their significance in the body.

  • Balanced Diet: The meaning of a balanced diet and the components of a balanced diet.

  • Deficiency Diseases: Diseases that are caused because of the deficiencies of various nutrients in the human body.

  1. Night Blindness -  It is caused because of the deficiency of Vitamin A.

  2. Beri-Beri - It is caused because of the deficiency of Vitamin B1.

  3. Bleeding Disease - It is caused because of the deficiency of Vitamin K.

  4. Anaemia - It is caused because of the deficiency of Iron.

  5. Goitre - It is caused because of the deficiency of Iodine.

  6. Scurvy - It is caused because of a deficiency of Vitamin C.

  7. Rickets - It is caused because of the deficiency of Vitamin D and Calcium.

  8. Marasmus - It is caused because of the deficiency of Protein and Carbohydrates.

  9. Kwashiorkor - It is caused because of the deficiency of Protein.

  • Malnutrition: What is malnutrition and how does it occur.

  • Undernutrition: What is undernutrition and how does it occur.


How to Revise from CBSE Class 6 Science Notes Chapter 2 Components of Food?

Here are some of the best ways of making the best use of Components of Food Class 6 NCERT PDF.


Revise Everyday: You can revise Class 6 Chapter 2 Science for 15 minutes every day for six days of a week. If you refer to these notes just 15 minutes a day, you will remember more and be more conceptually clear than an average student of your age who refers to different science books. These notes facilitate faster, easier, and more effective learning.


Refer to Notes When in Doubt or After a Test: Once you have taken a test of the topic, you can refer back to the notes to correct your mistakes. You can also refer to the Class 6 Science Chapter 2 PDF when you have a question, doubt, or query regarding any topic, subtopic, or formula for conceptual clarity and to develop a better understanding of the topic. 


Along with studying Vedantu’s Revision Notes, you can also attend Vedantu’s LIVE Master Classes, watch Free Conceptual Videos, attend Lectures and LIVE Quizzes; take LIVE Courses, and participate in Ongoing Competitions. This will help you become thorough with the subject and help you enhance your knowledge. You can also take Vedantu’s Online Tests to assess the level of your exam preparation and to evaluate your understanding of the chapter. These online tests help you get a good grip on the topics and improve your confidence too. 


With Vedantu’s personalised attention, you can learn effectively, at your own pace anywhere anytime. NCERT Science Class 6 Chapter 2 Notes will not only help you score more marks in your exams but also help you build a solid foundation of the science subject. These notes are of the finest quality and have been devised to include effective study strategies.


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The Vedantu App has all the course content laid out in a well-structured manner to help you save time and effort. With Vedantu as your study buddy, you have nothing to worry about. Vedantu gives you all the personal attention you need to score more marks in your exams. 


On the Vedantu App, you can select your tutor based on your requirements. You can clear all your subject-related doubts and queries on the Vedantu App. Tutors on Vedantu are very quick in responding to all your questions. On the Vedantu App, you can study online or offline with free PDF downloads. With Vedantu, wherever you go, you can take your studies with you. Learning does not have to be a hard task anymore. You can now embrace learning as a more natural and enjoyable part of your student life.


Benefits of CBSE Class 6 Science Revision Notes on Chapter 2

Some of the key benefits of Revision notes of Class 6 Chapter 2 Components of Food are listed below.

  • Vedantu’s revision notes on Class 6 Chapter 2 have been strategically drafted after long hours of brainstorming and strategy building. They are simple, interesting and fun to read.

  • Revision notes on Class 6 Chapter 2 Components of Food are prepared by our science experts having years of experience which will help students to have a better understanding of concepts.

  • Chapter 2 Revision Notes are prepared as per the CBSE guidelines which will help you in getting good marks in the Class 6 examination.

  • Chapter 2 Revision Notes PDF is available for download free of cost for the students on our website.


Additional Materials for CBSE Class 6 Science by Vedantu

Chapter-wise Revision Notes for Class 6 Science



Vedantu's Components of Food Class 6 Notes for CBSE Science Chapter 2 provide a comprehensive and accessible resource for students to understand the crucial aspects of nutrition. With a concise and well-structured presentation, these notes cover essential topics such as carbohydrates, proteins, fats, vitamins, and minerals. The free PDF download allows students to easily access and study the content at their convenience. By offering a clear explanation of the role of each nutrient in the body, these notes enable students to grasp the significance of a balanced diet for overall health. Vedantu's Class 6 Notes are a valuable aid for students in their journey towards a deeper understanding of nutrition.


The students facing difficulty in understanding the concepts related to these topics can refer to the Revision Notes pdf of Chapter 2 to clear their doubts. For more such study materials such as revision notes of other chapters and NCERT Solutions for Class 6, visit Vedantu’s website or download the app for the best learning experience.

FAQs on Components of Food Class 6 Notes CBSE Science Chapter 2 (Free PDF Download)

1. What are the 6 nutrients of food in Chapter 2 of Class 6 Science?

There are six important nutrients of food according to the syllabus of Chapter 2 of Class 6 Science. They are carbohydrates, fats, proteins, minerals, vitamins, and roughage. A balanced diet should include all of these components to be called a balanced diet. These nutrients are also known as the essential components of food. You can learn about each nutrient individually from NCERT Solutions. NCERT Solutions provides you with the definitions of all important and difficult terms in a simple language which helps students to understand the concepts in no time.

2. What are nutrients in Chapter 2 of Class 6 Science?

Food is essential for human beings to maintain the health and growth of their body. The substances present in food provide nourishment and energy to support the maintenance and growth of the body of organisms known as nutrients. The nutrients present in food are of various kinds and every nutrient has a special function to maintain the growth and health of the body of organisms.

3. How are revision notes of Chapter 2 of Class 6 Science helpful to students?

Class 6 is a base class for students to understand complex concepts in higher standards. The concepts explained in Chapter 2 of Class 6 Science also include facts and information that are essential from the general knowledge aspect. Chapter 2 talks about the components of food and its related concepts. These concepts can be difficult for students to grasp at once. NCERT revision notes provide students with the same concepts that are easy to understand and learn. NCERT revision notes structure the notes in a manner that is easy to learn and memorise by the students.

4. What is Chapter 2 of Class 6 Science about?

Chapter 2 of Class 6 talks about the most essential thing for all living organisms- Food. The chapter briefs us about the nutrients and six essential nutrients of food, the meaning of balanced food, deficiency diseases that can be caused due to lack of nutrients in the food, and the symptoms of these deficiency diseases. You can understand all these terms and concepts with the help of NCERT revision notes. These revision notes help you to get the gist of the chapter and important keywords and terms.

5. What are the symptoms of lactic acidosis Chapter 2 of Class 6 Science?

The concept of lactic acidosis refers to the high level of lactate in the blood. Lactic acidosis can cause severe nausea, vomiting, breathing problems, and abnormal beating of the heart. In a severe case of lactic acidosis, symptoms include ataxia and episodes only occur when the individual is ill, under a lot of stress, or after consuming carbohydrates in a high quantity. You can learn more about lactic acidosis and other deficiency diseases along with their related symptoms from NCERT Solutions.