Fig. 6

Association network between gut microbiota and blood metabolites. Association strength is denoted by width of the lines; red lines show positive association while blue ones show negative. Phylum of taxa is indicated by colored boxes and metabolite super-pathway (listed in Supplemental Table 5) by colored circles. Anaerotruncus (Firmicutes) is the genus with the largest number of negative associations with the lipid super-pathway, while the family Chistensenellaceae (Firmicutes) has the largest number of positive associations with metabolites in the same super-pathway. Enterobacteriaceae family (Proteobacteria) is the taxa with more positive associations with the amino acid super-pathway