This document discusses the basics of nutrition, including the six major classes of nutrients (carbohydrates, fats, proteins, vitamins, minerals, water), their functions, and food pyramids. It explains that nutrients are essential for growth, energy, development, immunity and maintenance. The six classes and some of their key roles are carbohydrates for quick energy, proteins for building the body and making enzymes/hormones, fats as the highest energy source, vitamins for maintenance/repair, minerals which the body needs 20 types of, and water which makes up 60% of the body.

1. Purbangshu Chatterjee

2. Think

3. The basics

4. Agenda
 Understanding Basics of Nutrition
 Major classes of Nutrients
 Functions of Nutrients
 Understanding food Pyramids
 Summary

5. Nutrition
Nutrition is important for the body to
survive. Very important for energy, growth,
development, immunity & maintenance. We
get this from Food

6. Nutrients
 Grow, repair and maintain all body cells
 Regulate body processes
 Supply energy

7. Six major classes of Nutrients
 Carbohydrates
 Fats (lipids)
 Proteins
 Vitamins
 Minerals
 WATER

8. Carbohydrates
 Key to quick energy sources
 Glucose – glycogen (liver/muscle ) fat

9. Proteins
 Amino acids ( 20 different)
9 essential – those needed by diet
11 Non essential – present in our body
 Proteins
Building Block of our Body
Need for making Enzymes / Hormones
Major ingredient of blood
 1gm of protein needed per kg of body wt

10. Fat (Lipids)
 Highest Source of energy
Make skin glow
improve your immune system

11. Vitamins
 Maintenance & repair
 Fat Soluble A , D, E, K,
 Water Soluble
C (asborbic acid)
B complex – thiamin, riboflavin, panthothenic
acid, niacin, folate, biotin)
Anti-oxidants
C E Beta Carotene (vit A)

12. Minerals
 20 different

13. Water
 60 % of body is water
 Need 2.5 liters per day
 Electrolyte
sodium, chloride, potassium, magnesium, calcium

14. Food Pyramid

15. Summary
Body needs food from all 6 basic food groups.
Our body needs balanced essential nutrition to
maintain optimal health
Nutrient needs vary in different people of all age
groups