The Journal of Nutrition, April 1st, 2001
Iron1
ABSTRACT The most useful and appropriate methods for assessing the bioavailability of (nonheme) iron supplements are described. When the supplement can be labeled isotopically, the best method for measuring bioavailability is hemoglobin incorporation, followed by fecal monitoring. Caco-2 cell in vitro systems can be used for rapid screening to predict potential availability for absorption. If the compound cannot be labeled, then the plasma appearance/disappearance of oral iron given together with an intravenous dose of iron isotope can be used to quantify absorption. With oral doses in ...
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