Author contributions
M.C.H. and D.M.W. generated short-read and long-read shotgun sequencing datasets of faecal DNAs and, together with H.M.L., assembled MAGs. D.A.R., A.L.O., M.D.K., S.A.L. and A.A.A. performed metabolic pathway reconstruction and annotation of MAGs, while S.H., V.L., N.T. and B.H. annotated PULs and CAZymes in MAGs. M.C.H. identified WLZ-correlated MAGs and conducted analyses of the enrichment of their encoded functions. M.C.H. and R.Y.C. conducted analyses of MAG abundance responses to treatment. D.M.W. generated and together with M.C.H., C.Z., D.A.R., A.L.O. and A.A.A. analysed microbial RNA-seq datasets. J.J.C., C.B.L., G.C., N.P.B. and Y.C. performed LC–MS analyses of food and faecal glycans. J.L.-G. isolated 