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Total Diet Study (TDS) is based on the evaluation of food samples representing a Market Basket, which shows dietary habits of a given population. The World Health Organization (WHO) has encouraged countries to conduct their own TDS, which is already being done in several countries, but not yet in Brazil. This study involved essential steps to establish a TDS in São Paulo State: a) information about food consumption (a recent national household food budget survey “POF 2002-2003” by the Brazilian Institute for Geography and Statistics (IBGE), including 5,440 foods); b) development of a Market Basket (sampling of 71 foods consumed more than 2g/day/person, grouped into 30 food groups: cereals; leguminous; leafy, fruity and tuberous vegetables; tropical fruits; other fruits; flours; pasta; breads; biscuits; prime and standard grade beef; pork meat; sausages; poultry; milk/cream; other dairy products; sugars; sweet dishes; salts, sauces; oils, fats, alcoholic beverages; non-alcoholic beverages; coffee; ready-made dishes; seawater and freshwater fishes); c) collection and kitchen preparation in restaurants of the Foodservice Department of the Coordination of Social Assistance of the University of São Paulo (preparing readyto-consume foods, individually and mixing foods of the same food group); d) chemical analysis (food groups were homogenized, pulverized and analyzed by Instrumental Neutron Activation and GF Atomic Absorption Spectroscopy). Element contents were determined in the 30 food groups. Average element range concentrations and daily dietary intakes were determined. The results of daily dietary intakes in this study (275±31mg Ca; 20.7±1.9μg Cr; 5.70±0.4mg Fe; 861±46mg K; 9.44±0.48μg Se; 1928±278mg Na; 4.25±0.24mg Zn; 1.53±0.43μg As and 1.31±0.16μg Cd) were lower than or similar the results of other Brazilian studies and lower than results of TDS of other countries. This is probably due to the fact that the Market Basket of this study represented only 72% of the weight of the most consumed foods of the São Paulo state. Furthermore, some food sources were consumed in low percentages or they were not included in the Market Basket. Although this Market Basket contained only foods consumed in the household and the restricted weight of the Market Basket, this TDS was well structured and was pioneer in its scope in Brazil. This TDS contributes to the knowledge of elements of analyzed food groups of São Paulo State. Further Brazilian TDS should be expanded to include additional elements to be analyzed, foods in the Market Basket, and consequently increased number of food groups analyzed.

Estudo de dieta total no Estado de São Paulo: estimativa de ingestão dietética de elementos tóxicos (Arsênio e Cádmio) e essenciais (Cálcio, Cromo , Ferro, Selênio, Sódio, Potássio e Zinco)