I battled severe IBS for years until I came to see Dr. McManus. She and her staff saved the day after ordering a special stool test and food sensitivity test, giving me a treatment plan to cleanse, and optimizing my supplement regimen. Hallelujah! I have a whole new life! They discovered a parasite as well as 3 food sensitivities. Dr. McManus and staff really cared. And listened. And followed up. And still cared. Studies show these matter to effectiveness of treatment.