Fig. 3: Changes in the structure of faecal microbiota of the 380 children before (red) and after (blue) six months of nutritional intervention.

PCoA representation of Bray-Curtis dissimilarities calculated at the ASVs level. Ellipsoids represent the 95% confidence interval surrounding each sampling time. Significance testing was conducted using PERMANOVA with 999 permutations, and stratification by subject, yielding a P value = 0.001. Source data are provided as a Source Data file.