Manganese intake of adult men consuming self-selected diets
1994
Drolet, C. (Universite de Montreal, Montreal, Quebec.) | Zayed, J.
The dietary intake of manganese (Mn) was evaluated for two groups of workers presumed to be exposed to different amounts of atmospheric Mn: blue-collar workers (n = 28), and garage mechanics (n = 37). Energy, dietary fibre, iron, and Mn intakes were assessed using three-day dietary records. No significant differences were found between the two groups, except for dietary fibre intake, which was higher in the blue-collar group (15 +/- 8 vs 11 +/- 6 g; P = 0.02). The daily mean intakes of Mn by the blue collar workers and the mechanics were 3.7 +/- 2.7 mg and 2.9 +/- 1.4 mg, which fell within the U.S. suggested safe range of 2.0-5.0 mg/d. Twenty-five per cent of subjects received less than this range, and 15% exceeded it. Major sources of Mn were breads and cereals (51.8%), vegetables (16.5%), and beverages (12.8%). The high content of meat, milk products, and refined foods in the diet of these subjects explain the majority's low daily Mn intake
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