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. 2021 Jun 1;13(6):1908. doi: 10.3390/nu13061908

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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The probiotic reduced the relative risk of unresolved anemia and side effects in children with nutritional iron deficiency anemia receiving iron supplementation. Forest plot of studies on IDA treatment efficacy and occurrence of side effects. The 3 studies included in these meta-analyses are detailed in Table 4. (References: Wei, 2018 [35], Yang, 2015 [37], Wu, 2014 [36]). (a) Events refers to the number of cases categorized as inefficient (negative outcome of treatment); Total refers to the number of participants in the Experimental (Probiotic) and Control groups. (b) Events refers to the number of cases experiencing iron supplementation-related side effects; Total refers to the number of participants in the Experimental (Probiotic) and Control groups. (c) Mosaic plot showing the summary of the risk of bias analysis of studies included in the meta-analysis.