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  1. Iron bioavailability from diets consumed by different socioeconomic strata of the Venezuelan population.

    Article - En anglais

    The iron bioavailability from three typical diets consumed by socioeconomic stratum IV (SES IV-working class) of the Venezuelan population was determined by the extrinsic label method.

    Although the iron content of the SES IV diets was about the same (250 mumol/d) as that of upper (SES I-III) and lower (SES V) socioeconomic strata diets, iron-replete subjects absorbed 43 and 61% more iron from the SES I-Ill diets than from the SES IV and V diets, respectively, and absorption from the main meal of the SES I-III diets was 100% greater.

    However, iron deficient subjects absorbed about the same amount of iron (45 mumol/d) from the SES IV diets as from the SES I-III diets.

    The SES I-III diets contained more iron absorption enhancers (ascorbic acid and meat protein) and less of the inhibitor phytate, than the SES IV and V diets.

    Iron absorption from the meals of four diets consumed at different times during the day was also measured.

    There was no significant difference in the percentage iron absorption from the same meals eaten in the morning after an overnight fast, and when eaten at the customary time of day.

    Mots-clés Pascal : Venezuela, Amérique du Sud, Amérique, Statut socioéconomique, Alimentation, Aliment traditionnel, Biodisponibilité, Fer, Elément minéral, Nutrition, Homme

    Mots-clés Pascal anglais : Venezuela, South America, America, Socioeconomic status, Feeding, Traditional food stuff, Bioavailability, Iron, Inorganic element, Nutrition, Human

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 95-0468277

    Code Inist : 002B29B. Création : 01/03/1996.