The nutritional value for the following species have been determined: P.pallida, P.laevigata var. andicola, P.flexuosa, P.nigra, P.alba of the genus Proposis. To obtain this purpose surveys were done about the use and consumption of the Carob Tree in the High and Central Valleys of the Cochabamba Department. As a result of the surveys it was determined that the consumption of the pods made up for 54% of human nourishment. The species that were consumed the most were P.pallida and P.laevigata var. andicola. Within the uses of these leguminous pods, the pods are directly consumed in their raw form and on a lesser scale in their cooked form. It was also observed that a minority use it as flour which is then ingested principally in the form of pito and api. Afterwards a chemical bromatologic analysis was done and it was determined that there was a high content of carbohydrates and fiber, a relatively good percentage of protein and a low ethereal extract, standing out more than the minerals calcium and iron. It was also determined that the highest content of protein and ethereal extract show P.laevigata var. andicola and P.nigra, the fiber P.laevigata var. andicola, and P.pallida calories. The species with the most concentration of the minerals phosphorus, iron, and calcium were P.pallida and P.nigra. The biological tests for the protein quality performed for the two species that were the most consumed show poor results of Real Digestibility (Dr), Net Use of Real Protein (UNPr), Real Biological Value (VBr), and the Relation of the Efficiency of Protein (PER). These are considerably becoming better through a thermic process (toasted 10min). The leguminous cereal complementation (corn-carob tree), favorably increased all of the biological indexes. The species P.pallida showed superiority compared to the results obtained for P.leavigata var. andicola. In the meantime these species can be considered a good energy source and with the combination of cereals can effectively cover caloric protein deficiencies.