Relative abundance of the groups of bacteria displaying differences among participants (logLDA >3). Data presented as mean ± SE. Open bars = T2D-met+; gray bars = T2D-met−; black bars = ND. A: OTUs enriched in T2D-met− compared with ND. B: OTUs enriched in ND compared with T2D-met−. C: OTUs enriched in T2D-met+ compared with ND. D: OTUs enriched in ND compared with T2D-met+. E: OTUs enriched in T2D-met+ compared with T2D-met−. F: OTUs enriched in T2D-met− compared with T2D-met+. G: Eleven pooled OTUs classified as Butyrivibrio enriched in T2D-met+ compared with T2D-met− and ND. H: Four pooled OTUs classified as A. muciniphila enriched in T2D-met+ compared with T2D-met− and ND (note the change in scale). +P < 0.1; *P < 0.05; **P < 0.05 and q value <0.1; ***P < 0.05 and q value <0.05.