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Functional Gastroenterology


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About the Author

Dr. Steven Sandberg-Lewis is co-founder of the SIBO Center at National University of Natural Medicine (NUNM), Portland, Oregon. This center is one of only four centers in the USA for Small Intestine Bacterial Overgrowth diagnosis, treatment, education and research. A professor at NUNM since 1985, he supervises clinical rotations at the NUNM Health Center, is a full-time faculty member teaching gastroenterology, advanced gastroenterology and GI physical medicine practicum. In addition, he maintains a part-time practice at 8 Hearts Health and Wellness in Portland. Dr. Sandberg-Lewis' areas of expertise include inflammatory bowel disease (including microscopic colitis), irritable bowel syndrome (including post-infectious IBS), Small Intestine Bacterial Overgrowth (SIBO), hiatal hernia, gastroesophageal and bile reflux (GERD), biliary dyskinesia, and chronic states of nausea and vomiting. He receives referrals of patients desiring naturopathic treatment options, often finding successful treatments to regain a balance in the digestive system. He lectures frequently at functional medicine seminars, presents webinars and is frequently interviewed on issues of digestive health and disease. He is the author or co-author of several Townsend Letter award winning articles ("Hiatal Hernia Syndrome", "Dysbiosis Has a New Name", "Small Intestine Bacterial Overgrowth: Common but Overlooked Cause of IBS") and the author of the medical textbook, Functional Gastroenterology: Assessing and Addressing the Causes of Functional Digestive Disorders. He is a graduate of NUNM.


"There is no other book like this one. It is an absolute essential for anyone dealingwith functional problems of the digestive tract. Dr. Sandberg-Lewis is alegend in the Naturopathic medical community with over thirty years clinicaland teaching experience in gastroenterology. The knowledge he shares in thisbook is extremely enlightening and will help countless doctors and patients.Thank you!" --Allison Siebecker, ND, MSOM, SIBO Consulting Physician Lecturer and Author "In Dr. Sandberg-Lewis' textbook, a parable about "Thinking Outside The Box"is described. Medical practitioners have boxed themselves into a tight and limitedbox of conventional wisdom derived from medical school and residency(where they were taught by a doctor just a few years older than themselves).This is anything but wise. Functional Gastroenterology takes a fresh look atGI disorders and can be a great resource to people with an open mind wishingto expand their horizons."--Leonard Weinstock, MD, Gastroenterology and Internal Medicine Clinician, Author, and Researcher " Presenting options for comprehensive physical exam, laboratory assessmentand treatment, this text provides the basis for primary and specialty physiciansto diagnose and treat functional GI tract disorders."--Jonathan Collin, MD Publisher, Townsend Letter--The Examiner of Alternative Medicine

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