The main trace elements are the iron, cinz, manganese, selenium, receives, iodine, nickel, silicon, lithium, cobalt and chromium, all of them must contribute themselves to our organism by means of the diet, or in the foods that we ingested or by means of the contribution of nutritional complements.

Between its main functions we can emphasize:

The iron takes part in the processes of pick up and oxygen transport. Its deficiency would have respiratory consequences like the anemia or problems. The iron contribution we can guarantee it taking foods like the red meats, the dry fruits, the lentils or the bread.

The iodine is indispensable for the correct operation of the thyroid, in case deficiency in the feeding of this oligoelemento exists can be produced goiter. This disease is more frequent in zones in which usually it is not consumed fish that is a very rich iodine source.

Cinz is a trace element of great importance for the manufacture on the part of the body of several hormones, for the insulin production or the correct maintenance of the immunological system. Ostras, the fish or the meat are foods that contribute zinc.

The nickel is used by the human body to fight against infections or for the anemias. If we want to have a contribution assured nickel the beer leavening it can be one more a source than exceeded.