NCERT Class 12 Home Science Manav Paristhitik avam Parivar Vigyan Bhag 1: Chapter 2 — Food Science and Nutrition
This chapter, "Food Science and Nutrition," from NCERT Class 12 Home Science (Manav Paristhitik avam Parivar Vigyan Bhag 1), emphasizes the profound significance of food beyond basic biological needs. It highlights food's role in cultural identity, social practices, and even as a symbol of hospitality and power. The chapter details how proper nutrition is crucial for bodily functions, disease resistance, and overall well-being, impacting health from pre-birth throughout life. It discusses the prevalence of malnutrition and overnutrition in India, leading to health issues like obesity and diabetes. The text also touches upon the importance of food preservation and processing, identifying the food processing industry as an "emerging sector" in the Indian economy due to reduced costs, foreign investment, and increasing demand for processed foods driven by socio-economic changes and health concerns. The chapter underscores the need for trained professionals in nutrition and public health to address these challenges.
Quick info
| Board | CBSE / NCERT |
|---|---|
| Class | Class 12 |
| Subject | Home Science |
| Book | Manav Paristhitik avam Parivar Vigyan Bhag 1 |
| Chapter | Chapter 2 — Food Science and Nutrition |
| Language | English |
| PDF type | NCERT Textbook |
| Session | CBSE 2026 |
| Reading time | 3 minutes |
| Word count | 558 |
Learning outcomes
- Understand the multifaceted importance of food beyond biological necessity.
- Recognize the impact of nutrition on health from prenatal stages to lifelong well-being.
- Identify common nutritional problems like malnutrition and overnutrition in India.
- Appreciate the significance of food preservation and processing for the economy and health.
- Understand the need for trained nutritionists and public health professionals.
Vocabulary
| Word | Meaning |
|---|---|
| Nutrition | The process of providing or obtaining the food necessary for health and growth. |
| Malnutrition | Lack of proper nutrition, caused by not having enough food or not eating the right kinds of food. |
| Overnutrition | Excessive intake of nutrients, often leading to obesity and related health problems. |
| Preservation | The action of preserving food; keeping food from spoiling. |
| Processing | A series of operations performed on food to change or preserve it. |
| Cultural Identity | The feeling of belonging to a group that shares the same culture or ethnicity. |
| Hospitality | The friendly and generous reception and entertainment of guests, visitors, or strangers. |
| Immunity | The ability of an organism to resist a particular infection or toxin. |
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Practice questions
- Besides fulfilling biological needs, what other significances does food hold? Answer: Food holds significance in cultural identity, social and religious practices, creativity, hospitality, prestige, and power.
- How does nutrition affect an individual's health throughout life? Answer: Nutrition plays a crucial role from before birth, influencing physical health throughout an individual's life.
- What are the two main nutritional problems mentioned in the text concerning India? Answer: The two main problems are malnutrition (undernourishment) and overnutrition (leading to obesity, heart disease, diabetes, etc.).
- Why is the food processing industry considered an 'emerging sector' in India? Answer: It's considered emerging due to lower production costs compared to other countries, significant foreign investment, and increasing demand for processed foods.
Practice MCQs
Q1. Food is symbolic of all the following EXCEPT:
Explanation: The text states that food is a symbol of hospitality, prestige, and power, not isolation.
Q2. Which of the following health issues is linked to overnutrition?
Explanation: Overnutrition can lead to health problems such as obesity, heart disease, and diabetes.
Q3. The chapter highlights that approximately what fraction of food production in India goes to waste?
Explanation: The text mentions that approximately 1/5 to 1/3 of food production in India is wasted.
Q4. What is described as the 'emerging sector' in the Indian economy in the context of the chapter?
Explanation: The food processing industry is identified as an 'emerging sector' due to various economic and market factors.
Q5. The chapter emphasizes the need for trained professionals in which fields to address public health and nutrition issues?
Explanation: The text explicitly states the need for trained dietitians and public health nutritionists.
Frequently asked questions
Why is food considered more than just a biological necessity?
Food is crucial for cultural identity, social and religious practices, and symbolizes hospitality, prestige, and power.
When does nutrition start influencing our health?
Nutrition begins to play a significant role even before birth and continues to impact physical health throughout life.
What are the main nutritional challenges faced in India?
India faces challenges of both malnutrition (undernourishment) and a growing prevalence of overnutrition, leading to various lifestyle diseases.
What health issues arise from overnutrition?
Overnutrition is linked to health problems such as obesity, heart disease, and diabetes.
What is the status of food waste in India?
A significant portion of food production, estimated between 1/5 and 1/3, goes to waste in India.
Why is the food processing industry important for the Indian economy?
It's considered an emerging sector due to lower production costs, foreign investment, and increasing demand, contributing to the economy.
Who is needed to provide dietary and nutritional advice?
Trained dietitians and nutritionists are required to provide expert advice on diet and nutrition.
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Topics covered
NCERT Class 12 Home Science — Manav Paristhitik avam Parivar Vigyan Bhag 1 — Chapter 2 — Food Science and Nutrition. Verified by NCERT Help Editorial Team. Reviewed on 29 Jul 2026. Last updated 10 Aug 2026.