Abstract
Background:
Some studies have explored the effects of amino acid-based formulas (AAF), extensively hydrolyzed formulas (EHF), and soy-based formulas (SF) on growth indices, weight-for-age z-scores, length-for-age z-scores, and weight in children with cow’s milk allergy (CMA).
Aims:
This review aimed to evaluate and differentiate the effectiveness of AAF, EHF, and SF on growth parameters in children with CMA.
Methods:
A systematic review was conducted in three databases—PubMed, Web of Science, and Scopus—up to March 2023 to identify eligible studies. Eight articles were analyzed in this study. Effect sizes were reported as weighted mean difference with 95% confidence intervals (CI). Statistical heterogeneity between studies was assessed using Cochran’s Q-test. The risk of bias was evaluated using the ROBINS-I tool.
Results:
A total of eight studies, encompassing 469 participants, met the inclusion criteria. The meta-analysis demonstrated a significant positive effect of the AAF and EHF on weight and weight-for-age z-scores, while no significant changes were observed for length-for-age z-scores. Furthermore, pooled effect sizes indicated that AAF had a more pronounced impact in weight-for-age z-scores (+0.30) compared with EHF (+0.25). Soy-based formulas had negligible effects on growth parameters.
Conclusion:
The findings suggest that AAF and EHF are more effective in improving growth parameters, particularly weight-for-age z-scores, in children with CMA compared with SF. Among the formulas studied, AAF showed the greatest positive impact on weight-for-age z-scores. These results highlight the importance of formula selection for optimizing growth outcomes in children with CMA.
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Supplementary Material
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