Essential substances required by our body to grow and stay healthy are known as nutrients and the process by which the organisms obtain and use the nutrients for maintaining a healthy life is known as nutrition. There are two ways to get or make food:
Autotrophic nutrition is a mode of nutrition in which an organism makes its own food using energy from the sun (or inorganic sources), such as plants using photosynthesis.
Heterotrophic nutrition is when an organism obtains its food by consuming other organisms, such as animals feeding on other animals or plants.
