Figure 4. LEfSe analysis of gut microbiotal bacteria. (A) LDA score histogram of differentially abundant genera (LDA > 4, P < 0.05). (B) Cladograms display different species between the two groups. Species without significant differences are uniformly colored in yellow. Red nodes indicate the microbial groups that played important roles in the placebo group; green nodes indicate those that played important roles in the psyllium husk group. The diameter of each circle is proportional to its relative abundance.