The Department of Nutrition of the São Paulo University School of Public Health carried out nutritional surveys in several regions of the State of São Paulo in order to establish the epidemiologic aspects of nutritional problems regarding riboflavin deficiency. Alimentary, clinical and biochemical surveys were carried out, each of which directed to different phases of the natural history of deficiency diseases. It was shown that 30.8 per cent of subjects examined presented at least one clinical sign attributable to arriboflavinosis, 41.0 per cent presented, abnormal urinary excretion levels and more than half the families consumed less than 60 per cent of recommended dietary allowances.
Riboflavin; Arriboflavinosis; Nutritional surveys; Alimentary survey; Clinical nutritional survey; Biochemical survey
