File Name : supplementary figure 1 .tif

Caption : supplementary figure 1 effect of tryptophan on intestinal microbiota. a: operational taxonomic units (out) number of colonic microbiota in all groups; (b-d) observed species(b), indies of simposin (c), chao1 (d), and shannon (e); f: venn diagram revealing the overlap of out number in colonic microflora among those groups.