<span>After the first year of life, adolescence is the most important period of growth of the whole life of a person. <span>The nutritional needs of adolescents are soaring. </span>The recommended energy intake depends on the stage of growth, genetic factors, and physical activity level. <span>It varies between 2 100 and 2 900 kcal per day in girls, and 2400 and 3500 kcal in boys. </span><span>Indeed, nutritional needs are especially increased, related to the pubertal growth (skeletal and muscular development).
</span><span>The nutritional needs of adolescents
</span>The nutritional needs of teenagers are higher than all other ages. <span>Note, however, that children of the same age and sex may be at very different stages of development.
</span><span>It is therefore difficult to provide quantified nutritional recommendations.
</span><span>However, adolescents, whatever their stage of development, have higher nutritional needs in protein, calcium and iron.</span></span>
