Abstract
Due to its essential characteristics, the daily dietary selenium intake of individuals should be monitored accurately. In the current work, daily selenium intake of different Brazilian population groups based on duplicate portion diet analysis was evaluated and compared with the new estimated average requirement values (EAR), to assess if selenium deficiency or excess could be observed in these groups. Selenium content was determined by neutron activation analysis (NAA). The average daily dietary selenium intake found was 26.3 (±8.3) ∝g/day for children from the city of Sao Paulo, 37.4 (±16.0) ∝g/day for children from Belem, 107 (±107) ∝g/day for children from Macapa, 28.4 (±7.5) ∝g/day for institutionalized elderly, 32 (±6) ∝g/day for non-institutionalized elderly and 37 (±17) ∝g/day for university students from Sao Paulo. Most daily dietary selenium intake range observed were below the EAR values. The values obtained for children groups from Belem and Macapa cities, whose intake levels were much higher than the recommendation, were an exception.
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