ACOD1 and metabolic disease: In line with phylum-level data, the differential abundance matrixes (Supplementary Fig. 10C, F) and fractional analyses (Supplementary Fig. 10E, G, H), carried out at family and genus level, show that the transplant of stools from Acod1-/- donors increased the levels of Bacteroidaceae and Bacteroides - bacterial taxa associated with protection from metabolic disease - into wild type recipients compared with wild type donor mice.