Food
Food contains chemical energy which is stored in the body, this energy is released when we carry out physical activities like when we exercise, play sports or work.
The foods we eat provide us with calories, this is important to the body as it measures the dietary energy we consume. Knowing how much calories any type of food has is a good way of helping us eat healthy and maintain a balanced diet.
When people go shopping for food they usually like to look on the box or container of certain foods to see how many calories that food provides and then decide if it is good for them to consume. Being aware of this helps us maintain or lose weight.