Children and adolescents need sufficient nutritious foods to grow and develop normally. Physical activity is important for all children and adolescents. Too little or too much food, or an imbalance of nutrients or energy over a period can alter the natural progress of physical growth. During adolescence the body grows rapidly over a relatively short period of time. More food is needed for energy, bone growth, muscle growth, regulation of body functions in a larger body, increased blood volume and for general health. Adolescents can get hungry frequently, so a selection of nutritious snacks is useful.
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