Beschreibung:
<jats:p>Absorption from wheat intrinsically and extrinsically labelled with <jats:sup>67</jats:sup>Zn and extrinsically labelled with <jats:sup>65</jats:sup>Zn was measured from <jats:sup>67</jats:sup>Zn faecal excretion and 6sZn whole-body retention in rats. There were significant differences between the extrinsically- and intrinsically-labelled <jats:sup>67</jats:sup>Zn (<jats:italic>P</jats:italic> < 0·001), but not between the extrinsically-labelled <jats:sup>65</jats:sup>Zn and intrinsically-labelled <jats:sup>67</jats:sup>Zn. The effect of chicken meat on the absorption of Zn from intrinsically-labelled wheat was also studied in the rat. Mean Zn absorption from wheat and chicken meat fed separately was 18·5 and 68·2% respectively, and from a mixture of the two containing the same level of Zn was 50·1%. The apparent absorption of Zn from the composite meal was significantly higher than predicted from the results of the foods on their own (<jats:italic>P</jats:italic> < 0·001).</jats:p>