Summary
Chapter 3 'Mindful Eating: A Path to a Healthy Body' from NCERT Class 6 Science (Curiosity) teaches students about food components (carbohydrates, proteins, fats, vitamins, minerals, roughage, and water), deficiency diseases, balanced diet, millets, food miles, and how to test nutrients in food.
This chapter explores why food is essential for life, how food habits vary across India's regions, and what nutrients our bodies need. Students learn about the major nutrients — carbohydrates (energy-giving), fats (stored energy), proteins (body-building), vitamins and minerals (protective) — along with dietary fibres and water. The chapter covers deficiency diseases like scurvy (Vitamin C), rickets (Vitamin D), goitre (iodine), anaemia (iron), and beriberi (Vitamin B1), and describes simple lab tests to detect starch, fat, and protein in food. It also introduces balanced diet, junk food, millets as nutri-cereals, and the concept of food miles to encourage eating local and reducing food waste.
Key points & formulas
- 01The Sanskrit saying 'annena jātāni jivanti' means 'food gives life to living beings'.
- 02Traditional food of any state is based on crops grown in that region, varying by soil, climate, culture, and traditions.
- 03Carbohydrates (wheat, rice, potato, banana) and fats (ghee, nuts, seeds) are energy-giving foods; fats store energy.
- 04Proteins (pulses, paneer, egg, fish) are body-building foods that help in growth and repair.
- 05Vitamins and minerals are protective nutrients required in small amounts; deficiency causes specific diseases.
- 06Key deficiency diseases: Scurvy (Vitamin C), Rickets (Vitamin D), Beriberi (Vitamin B1), Goitre (iodine), Anaemia (iron).
- 07Roughage (dietary fibre) does not provide nutrients but aids in smooth passage of stools and elimination of waste.
- 08A balanced diet contains all essential nutrients, roughage, and water in the right amounts.
- 09Millets (jowar, bajra, ragi, sanwa) are called nutri-cereals — rich in vitamins, minerals, and dietary fibre.
- 10Food miles = distance food travels from producer to consumer; eating local reduces cost, pollution, and keeps food fresh.
- 11Junk foods have high fat and sugar but low protein, vitamins, minerals, and fibre; frequent consumption leads to obesity.
- 12Simple tests: iodine solution (blue-black = starch), oily patch on paper (= fat), violet with copper sulfate + caustic soda (= protein).
Frequently asked questions
01What is Chapter 3 of Class 6 Science Curiosity about?
Chapter 3 'Mindful Eating: A Path to a Healthy Body' covers food components (carbohydrates, proteins, fats, vitamins, minerals, roughage, water), deficiency diseases, how to test nutrients in food, balanced diet, millets, and food miles.
02What are the major nutrients in our food as per Class 6 Science Chapter 3?
The five major nutrients are carbohydrates, proteins, fats, vitamins, and minerals. In addition, food also contains dietary fibres (roughage) and water. Carbohydrates and fats provide energy; proteins support growth and repair; vitamins and minerals protect the body from diseases.
03What are deficiency diseases covered in Class 6 Science Chapter 3?
The chapter covers: Scurvy (Vitamin C deficiency — bleeding gums), Rickets (Vitamin D deficiency — soft/bent bones), Beriberi (Vitamin B1 deficiency — tingling in hands/feet), Goitre (iodine deficiency — neck swelling), Anaemia (iron deficiency — weakness), and vision loss/night blindness (Vitamin A deficiency).
04How do you test for starch in a food item as per Class 6 Science?
Apply 2–3 drops of diluted iodine solution to the food item. If the food turns blue-black, starch is present. If there is no colour change, starch is absent.
05How do you test for fat in a food item as per Class 6 Chapter 3?
Press the food item on a piece of paper and wrap it. Allow to dry if the food has water. If an oily patch appears on the paper and light shines faintly through it, the food item contains fat.
06What is a balanced diet according to Class 6 Science Chapter 3?
A balanced diet has all essential nutrients (carbohydrates, proteins, fats, vitamins, minerals), roughage, and water in the right amounts for proper growth and development of the body.
07What are millets and why are they called nutri-cereals?
Millets (jowar, bajra, ragi, sanwa) are small-sized native grains of India. They are called nutri-cereals because they are good sources of vitamins, minerals like iron and calcium, and dietary fibres. They can be cultivated in different climatic conditions and contribute to a balanced diet.
08What are food miles and why is it important to reduce them?
Food miles is the total distance a food item travels from the producer to the consumer. Reducing food miles helps cut down transport cost and pollution, supports local farmers, and keeps food fresh and healthy.
09What is junk food and why is it harmful according to Class 6 Science?
Junk foods (like potato wafers, candy bars, carbonated drinks) have high calories due to high sugar and fat content but very low protein, minerals, vitamins, and dietary fibres. Consuming them frequently is unhealthy and can lead to obesity and related health problems.
10Why did the Indian government introduce iodised salt in the 1960s?
In the 1960s, scientists found that people in the Himalayan region had neck swelling (goitre) due to iodine deficiency in the soil, which led to low iodine in local food and water. The government supplemented common salt with iodine (salts of iodine) to address this deficiency, and consumption of iodised salt reduced goitre symptoms.
11What is the difference between carbohydrates and fats as energy sources?
Carbohydrates provide instant energy — glucose (a carbohydrate) is used immediately by the body. Fats are a source of stored energy, used as reserves. Both are called energy-giving foods.
12Is the NCERT Class 6 Science Chapter 3 PDF free to download? Do I need to sign up?
Yes, the NCERT Class 6 Science (Curiosity) Chapter 3 PDF is completely free to download from this website. No sign-up or account is required.
More chapters in Curiosity
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