Introduction

All of us know that food is essential for all living organisms. The most important components of food are carbohydrates, proteins, fats, vitamins and minerals. All these components of food are necessary for our body and are called nutrients. All most all living organisms require food. Plants can make their food themselves but animals including humans cannot. They get it from plants or animals that eat plants. Thus, humans and animals are directly or indirectly dependent on plants. In this chapter you will learn all about nutrition.To score More in your class 7 refer NCERT solutions for class 7 Maths