“…Inadequate dietary protein, for example, has been demonstrated to be of aetiological significance in the abnormalities of intestinal morphology and function which are commonly present in children with kwashiorkor (Stanfield, Hutt, and Tunnicliffe, 1965;Brunser, Reid, M6nckeberg, Maccioni, and Contreras, 1966) and implicated as a possible factor in similar lesions in adults (Zubiran, 1961;Mayoral et al, 1967). Sebrell and his co-workers (Sebrell, Smith, Severing-haus, Delva, Reid, Olcott, Bernadotte, Fougere, Barron, Nicolas, King, Brinkman, and French, 1959) have documented the fact that the dietary intake of the rural population of Haiti is suboptimal and all seven patients in the protein deficiency category in the present study related that their intake of protein was markedly reduced. Further therapeutic studies concerned with the effect of protein repletion without vitamin therapy in such subjects will be necessary to elucidate whether protein malnutrition is of relevance in the aetiology of their intestinal abnormalities.…”