Protein (legumes, fish, seafood, eggs and meat and low-fat dairy). They possess essential amino acids that the body itself can not synthesize and allow growth because they are part of the structure of blood cells, organs, bones and muscles nutrivix lose weight naturally. Although they also provide energy, their main function is to repair and form tissues and cells, including those involved in the defense against diseases.
It must be borne in mind that proteins are not only contributed by the protein group foods (meat, fish, egg, legume) but also that dairy products provide complete proteins. And in addition, the nuts and the farinaceous ones also help to complete the contribution of proteins; for this reason protein deficiency is unlikely in our environment and it is not necessary to provide large amounts of meat for children to grow properly.