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Functional Gastroenterology: Assessing and Addressing the Causes of Functional Gastrointestinal Disorders

Functional Gastroenterology: Assessing and Addressing the Causes of Functional Gastrointestinal Disorders

by Steven Sandberg-Lewis

Paperback(2nd ed.)

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The Rome IV criteria refer to functional gastrointestinal conditions as “Disorders of Gut-Brain Interaction”. These conditions are involved in an estimated 40% of patient visits to gastroenterologists. Naturopathic functional diagnosis and individualized treatment are uniquely suited for good outcomes with these disorders. In Functional Gastroenterology, Steven Sandberg-Lewis, ND, DHANP, draws on skills and knowledge he has built during four decades of Naturopathic practice and teaching. He articulates clinical pearls and presents a thorough review of the relevant published research. This text focuses on the underlying causes of functional GI disorders as well as their diagnosis, treatment and management.

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Product Details

ISBN-13: 9780692864661
Publisher: Steven Sandberg-Lewis
Publication date: 03/17/2017
Edition description: 2nd ed.
Pages: 322
Sales rank: 694,838
Product dimensions: 6.00(w) x 9.00(h) x 0.67(d)

About the Author

Dr. Sandberg-Lewis is a practitioner of Naturopathic gastroenterology. He has been in practice for over 40 years and has been a professor of gastroenterology at the National University of Natural Medicine (NUNM) in Portland, Oregon, for 22 years. He continues to engage in patient care at Hive Mind Medicine in Portland, Oregon (info@hivemindmedicine.org). Dr. Sandberg-Lewis is a frequent presenter at educational seminars internationally, writes a column entitled Functional Gastroenterology Bolus for the Townsend Letter and is the author of the textbook entitled Functional Gastroenterology: Assessing and Addressing the Causes of Functional GI Disorders (2017, www.amazon.com). He and his family have also created a comic book explanation of SIBO entitled Nuthin' Funnies about SIBO. Sandberg-Lewis is the focus of numerous podcasts, interviews and webinars. Dr. Sandberg-Lewis often treats patients whose health conditions have defied diagnosis despite exhaustive medical testing or complex digestive disorders that have not responded to treatment. Areas of special focus include irritable bowel syndrome, SIBO, GERD, hiatal hernia, inflammatory bowel disease (including microscopic colitis), biliary dyskinesia, gastroparesis and unrelenting nausea.

Table of Contents

List of Tables and Illustrations




1 Functional Gastroenterology

2 The Enteric Nervous System, GI Hormones and Immunity

3 Flora and the GI Tract

4 Stress and Digestion

5 The ENS-CNS Axis, the Holobiome and the GI Metabolome

6 Small Intestine Bacterial Overgrowth:

Dysfunction Begins in the Small Bowel

7 Blood Sugar, Insulin, and the GI Tract

8 Functional GI Physical Exam Reflex Points and Muscle Testing

9 Lab Testing for Functional Gastrointestinal Disorders (FGID)

10 Diets for the Treatment of Gastrointestinal Conditions

11 Homeotherapeutics for Gastrointestinal Conditions

12 Hiatal Hernia Syndrome

13 Gastric Secretion and Suppression

14 Pancreatic Exocrine Insufficiency

15 Ileocecal Valve Syndrome (IVCS)


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