de Paula R A, Fisberg M
São Marcos University-São Paulo, Brazil.
Arch Latinoam Nutr. 2001 Mar;51(1 Suppl 1):54-9.
In the present work, the effectiveness of consumption for 6 months of iron fortified sugar in the prevention or control of iron deficiency anemia was evaluated in 93 children (10-48 months old) attending a day care center in São Paulo, Brazil. Each child consumed 20 g of fortified sugar per day for 5 days a week in orange juice during breakfast. Two levels of fortification were tested using iron tris-glycinate chelate as the source of iron. Level one sugar contained 10 mg of iron/kg of sugar, and level 2, 100 mg of iron/kg. The children were assigned to either of the two groups. The first group (n = 42) received level 1 sugar, and those of group two (n = 52) received level 2 sugar. The daily iron intake corresponded to 2 and 20% of the RDA. At the end of the 6 months trial period, significant increases in weight/height ratio was observed in both groups. In the group consuming level 1 fortified sugar the mean change in hemoglobin concentration was 0.4 g/dL (from 11.3 grams to 11.7 g/dL), and in the group consuming level two fortified sugar the mean hemoglobin increase was also 0.4 g/dL (from 11.6 to 12.0 g/dL). Both changes were highly significant (p < 0.001). When only the anemic children were considered (32/93), the increment of hemoglobin was 1.4 g/dL. In anemic children there was a significant increase in the levels of serum ferritin. The increase was more notorious in group 2 children. We verified that the acceptability of the iron-fortified sugar was excellent. There were no detectable changes in the organoleptic characteristics of the fortified sugar as compared with unfortified sugar. No differences in response were observed between the two groups indicating that probably the lower level of iron was absorbed more efficiently that the higher level. The iron tris-glycinate chelate was very well tolerated with no side effects registered. It was concluded that even with low iron levels, the consumption of iron fortified sugar is an effective, low cost intervention for the control and prevention of iron deficiency anemia in preschool children.
在本研究中,对巴西圣保罗一家日托中心的93名儿童(10 - 48个月大)进行了为期6个月的铁强化糖预防或控制缺铁性贫血效果评估。每个孩子每周5天,在早餐时将20克强化糖加入橙汁中食用。使用甘氨酸铁螯合物作为铁源测试了两种强化水平。一级糖每千克糖含铁10毫克,二级糖每千克糖含铁100毫克。孩子们被分为两组。第一组(n = 42)接受一级糖,第二组(n = 52)接受二级糖。每日铁摄入量分别相当于推荐膳食摄入量(RDA)的2%和20%。在6个月的试验期结束时,两组儿童的体重/身高比均显著增加。食用一级强化糖的组中,血红蛋白浓度的平均变化为0.4克/分升(从11.3克升至11.7克/分升),食用二级强化糖的组中,血红蛋白平均增加量也为0.4克/分升(从11.6克升至12.0克/分升)。两种变化均具有高度显著性(p < 0.001)。仅考虑贫血儿童(32/93)时,血红蛋白增加量为1.4克/分升。贫血儿童的血清铁蛋白水平显著升高。在第二组儿童中升高更为明显。我们证实铁强化糖的可接受性极佳。与未强化糖相比,强化糖的感官特性没有可检测到的变化。两组之间未观察到反应差异,这表明较低水平的铁可能比较高水平的铁吸收更有效。甘氨酸铁螯合物耐受性良好,未记录到副作用。得出的结论是,即使铁含量较低,食用铁强化糖仍是控制和预防学龄前儿童缺铁性贫血的一种有效且低成本的干预措施。