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  • Title: Iron absorption during iron supplementation in blood donors.
    Author: Magnusson B, Sölvell L, Arvidsson B, Siösteen C.
    Journal: Scand J Haematol; 1975 Jun; 14(5):337-46. PubMed ID: 1215830.
    Abstract:
    The total amount of iron absorbed from a total supplementation of 2000 mg of iron was studied after a blood donation. 10 regular blood donors and 10 subjects without previous blood loss were included in the study. No subject had received any iron treatment before the investigation. Both groups were given one sustained release tablet containing 100 mg of iron as Fe SO4 once daily for 20 days. The iron in these tablets was labelled with 59Fe. The total amount of iron absorbed from the tablets was measured by a whole body counting technique. Laboratory tests including haematological data, desferrioxamine tests and sternal marrow punctures were made before and after the iron treatment. The non-donors lost a mean amount of 215 mg iron by phlebotomy and the total iron absorption from the tablets was only 94 mg (4.7%). In the regular blood donors the corresponding iron loss was 276 mg and the absorption was 280 mg (14%). The iron supplementation given in this study covered the iron losses in the regular blood donors but not in the non-donors. This iron prophylaxis will present a depletion but not a reduction of the iron stores in blood donors with high donation frequency.
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