Abstract

Ten men consumed for 15 days each, 36 g daily of either whole or dephytinized wheat bran. Mineral intakes were the same for each dietary regimen. Phytic acid intake was 2 or 0.2 g and the phytate/zinc molar ratio was 12 or 1.2 when eating whole or dephytinized bran, respectively. Apparent absorption (intake-fecal excretion) of iron, zinc, copper, managenese, magnesium, and calcium tended to be lower when whole bran was consumed. However, balances (intake-[fecal+urinary excretion]) for the last 10 days were for the most part positive regardless of which type of bran and more positive when whole bran was eaten. The whole wheat bran did not have a deleterious effect on mineral nutriture of adult men under the conditions of this study.

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