Many and serious as are the problems confronting Europe and America at the present time, none is more important than the applica¬ tion of the science of nutrition in the daily life of the people."These words of E. V. McCollum1 serve to remind one of the importance of the application of the science of nutrition in the daily practice of ophthalmology and otolaryngology. The literature on oph¬ thalmology and otolaryngology is too poor in information concerning nutrition. Yet it is known that the science of nutrition has made marvelous progress in the past few years. On the other hand, I have not seen descriptions of the dietaries of patients encountered in the prac¬ tice of ophthalmology and otolaryngology, though Sherman2a wrote concerning the average American dietary, and Langstroth3 gave the diet histories of patients with chronic degenerative diseases, while Lewis 4 reported that a low intake of protein, fat and fluid is common.Accordingly, an analysis of 350 diet histories is presented, and it is hoped to make immediately available for practical use some of the chief advances in the knowledge of nutrition and to emphasize that patients need to be given the benefit of this knowledge by comparing what they eat with what different authorities say they should eat. It must be kept in mind, however, that persons vary in their nutritive requirements and "a dietary standard at best is 'only an indication, not a rule.' " 2b