Iron deficiency is the most common single nutrient disorder in humans. Carr
iers of beta -thalassemia have frequently been considered patients in whom
iron deficiency difficulty may co-exist because dyserythropoiesis enhances
enteric iron absorption. We studied 185 normal children and 146 heterozygou
s children for beta -thalassemia. Furthermore, 51 normal men and 45 men wit
h beta -thalassemia trait as well as 43 normal women of childbearing age an
d 25 carriers of the same age were studied. Serum ferritin estimations were
performed by RIA technique. No difference in iron deficiency prevalence wa
s found among heterozygous children for beta -thalassemia compared to norma
l children. The same was observed in adults. As for iron overload, the only
statistically significant difference has been observed among men. Affected
men tend to develop iron overload. Carriers of beta -thalassemia are world
-wide with a high rate among people of Mediterranean ancestry and in some d
eveloping countries. This condition concerns millions of people and, theref
ore, physicians should be aware that iron deficiency might co-exist or deve
lop in many of them. (C) 2001 Elsevier Science Inc. All rights reserved.