Metagenomic analysis of the gut contents
The study was specifically designed to evaluate therapeutic effects at both 7 and 14 days. Therefore, metabolomic and metagenomic analyses were performed on samples from both time points. Although the improvement in anemia parameters was not significant at day 7, we presented heatmaps and network diagrams for both time points to allow readers to visually appreciate the dynamic changes in metabolites and gut microbiota between day 7 and day 14. For this reason, the figures included in the main manuscript are considered essentia