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Background: The cornerstone for management of Food protein-induced gastrointestinal allergy (FPGIA) is dietaryexclusion; however the micronutrient intake of this population has been poorly studied. We set out to determinethe dietary intake of children on an elimination diet for this food allergy and hypothesised that the type of elimination diet and the presence of a hypoallergenic formula (HF) significantly impacts on micronutrient intake.Method: A prospective observational study was conducted on children diagnosed with FPIGA on an exclusion diet who completed a 3 day semi-quantitative food diary 4 weeks after commencing the diet. Nutritional intake where HF was used was compared to those without HF, with or without a vitamin and mineral supplement (VMS).
Results: One-hundred-and-five food diaries were included in the data analysis: 70 boys (66.7%) with median age of 21.8 months [IQR: 10 - 67.7]. Fifty-three children (50.5%) consumed a HF and the volume of consumption was correlated to micronutrient intake. Significantly (p <0.05) more children reached their micronutrient requirements if a HF was consumed. In those without a HF, some continued not to achieve requirements in particular for vitamin D and zinc, in spite of VMS.
Conclusion: This study points towards the important micronutrient contribution of a HF in children with FPIGA.Children, who are not on a HF and without a VMS, are at increased risk of low intakes in particular vitamin D andzinc. Further studies need to be performed, to assess whether dietary intake translates into actual biologicaldeficiencies.
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