Figure 1.

(A) The prevalence of obesity in the U.S. population is estimated at approximately 40% compared with NAFLD at 30% and IBS‐D at 10%‐15%. The estimated overlap between obesity and NAFLD is 75%‐90%, between obesity and IBS‐D is 10%‐20%, and between IBS‐D and NAFLD is 10%‐20%. There is a presumed overlap of obesity, NAFLD, and IBS‐D; these proportions are yet to be determined. (B) Data support that 25%‐50% of patients diagnosed with IBS‐D have BAD, and 10%‐20% will have concurrent NAFLD. There is a presumed overlap of IBS‐D, NAFLD, and BAD; these proportions are yet to be determined.