Question

Why does the body need food?

Answer 1

Answer:

The human body needs food for energy, to keep warm, and for growth and repair. We need many nutrients on a daily basis in order to stay healthy. The three main nutrient groups in food are carbohydrates, protein and fats. We also need minerals and vitamins.

Explanation:

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Answer 2

Explanation:

The foods we eat provide us with a range of nutrients: vitamins, minerals, water, fat, carbohydrates, fibre, and protein. These nutrients are put to different uses — as building materials to construct the tissues and organs from which our bodies are made; as the components of the molecular machinery that keeps our cells running as they should. All of these uses are unified by a common theme: a requirement for energy to make them happen. And this is where one particular type of nutrient comes into its own. Step forward the carbohydrates.