The present study sought to determine whether a dietary and multi-element psychological treatment (DMPT) approach in combination with standard medical treatment would offer a more efficacious therapeutic package to irritable bowel syndrome (IBS) patients than would standard medical treatment (SMT) employed alone. The DMPT group (N = 19) received a stress management training package for a 2 week period consisting of relaxation training, imagery, and bowel sound biofeedback training via a stethoscope, in addition to instructions to increase their daily consumption of dietary fiber. They also were to continue the implementation of whatever standard medical treatment they were currently receiving, be it a bulking agent, or anti-anxiety, anti-cholinergic, or anti-depressant medications, etc. The SMT group (N = 19) simply received whatever conventional medical treatment they had been prescribed.