Fig. 2

Stool Short Chain Fatty Acid Concentrations in Healthy Volunteers and Participants with Irritable Bowel Syndrome (IBS). Histograms are shown for total short chain fatty acids, acetate, butyrate, propionate, and acetate to butyrate ratios within clinical groups including healthy volunteers (HV), IBS with constipation (IBS-C), and IBS with diarrhea (IBS-D). Groups are denoted by color (HV = green, IBS-C = blue, IBS-D = red).