THE PREVALENCE OF MALNUTRITION

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Abstract
Recent estimates of the prevalence of malnutrition in the United States have varied so greatly that the Food and Nutrition Board of the National Research Council has assigned to us, as a subcommittee, the task of evaluating existing evidence on this question. Among the reasons for the widely varying estimates is the lack of criteria for the diagnosis of malnutrition. It is therefore necessary before discussion of the evidence that terms be defined. DEFINITIONS "Nutritional failure" exists as soon as adequate amounts of an essential nutritional factor or factors fail to reach the "milieu interne." "Dietary inadequacy" means the failure to ingest an essential nutritional factor or factors in amounts sufficient to meet the existing requirement of the body. "Nutritional inadequacy" means not only the failure to ingest, i. e. dietary inadequacy, but failure to absorb, to retain and to utilize an essential nutritional factor or factors in amounts sufficient

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