Figure 2.

Impact of PHGG supplementation on intestinal microbiota composition. (A) α-diversity decreases during intervention in both sexes and returns to baseline during the washout period (pairwise Wilcoxon Test). (B) Principal component analysis of microbial compositions over time; study week (i.e., PHGG supplementation status) as determinant was significant (PERMANOVA permutational analysis of variance). (C) Pairwise analyses of Bray–Curtis dissimilarities over time (Wilcoxon test). PHGG = partially hydrolyzed guar gum; * p < 0.05, ** p < 0.01.