“…are added] was developed to supplement the diets of the rural population (8). Biological tests with chicks (5), rats (7, .9), dogs and swine (6), and children (20) showed that Vegetable Mixture 9 was of high nutritive value, comparable to milk, particularly at high levels of protein intake. It was, therefore, of interest to study the supplementary value of its protein to the protein of the average child's diet in two towns in Guatemala.…”