Zinc, copper and magnesium absorption from a fibre-rich diet

摘要: Zinc, copper and magnesium absorption retention from a high-fibre high-phytate diet of conventional foods were investigated in 8 healthy subjects. Fractional the three minerals was estimated fecal monitoring zinc, stable isotopes added to one day's diet. In addition, apparent absorption, endogenous losses for respective based on urinary excretion over last 16 days 21 constant intake. The contained 1 mmol phytic acid, 29 g dietary fiber, 140 mumol 13 copper, 9 per 10 MJ. +/- 12% (x SD) (48 20 mumol), 44 7% (8 mumol) 46 6% (5 mmol), respectively. retained amounts -7 19 mumol, -5 4 -3 mmol, respectively intestinal 40 12 3 conclusion, fractional fibre-rich not sufficient cover these elements, resulting negative balances.