Dr. Michael Erdman, MBBS, is a Medical Doctor and Digestion & Nutrition Consultant who graduated from King’s College London School of Medicine in 2011. His expertise lies in functional gastroenterology and nutrition, with a particular focus on the Heidelberg pH Diagnostic test, a leading method for assessing gastrointestinal pH imbalances.

Over the past nine years, Dr. Erdman has dedicated his career to advancing functional digestive medicine. He has co-authored multiple national presentations covering topics such as gastroenterology, the gut microbiome, stealth gastrointestinal infections, Lyme disease, and related co-infections. Notably, he is the lead author of an original research article that uncovers a new association between patients with multiple digestive symptoms and positive blood markers for vector-borne illnesses.

First Author Publication

• 2021: “Association of Presenting Symptoms with Abnormal Laboratory Values for Vector-Borne Illness – Experience in an Urban Gastroenterology Practice” - Link.

National Presentations

Co-Writer of National presentations with Dr. Farshid S. Rahbar, MD.

• 2020 SIBOCON - "SIBO Pattern Recognition with Case Examples”

• 2019: SIBOCON - “SIBO and Related Microbiomes as Biological Markers for Systemic Illness”.

• 2017: American Academy of Anti-Aging Medicine: - “Intestinal Manifestations of Infectious Diseases - with case reviews”

• 2017: American College of Advancement in Medicine: “SIBO and the disordered gut microbiome”.

Regional Presentations

Co-Writer of Regional presentations with Dr. Farshid S. Rahbar, MD.

• 2020: "The Functional Medicine approach to GastroEsophageal Reflux Disorder”.

• 2019: “Traditional and Non-traditional approaches in Inflammatory Bowel Disease”.

• 2019: "Digestive Manifestations as the Primary Mode of Clinical Presentation in Vector-Borne Illness”.

• 2018: “SIBO and the Disordered Gut Microbiome”.

Online Case Reviews

• 2020: Co-author in the Naturopathic Doctor News & Review, with Dr. Melanie Keller, ND. “A complex case of recurrent SIBO: involvement of an underlying cryptic infection” - Link.

• 2018: Co-author of a functional medicine forum case study, with Dr. Farshid S. Rahbar, MD. “A clinical case of digestive symptoms, narcolepsy, panhypopituitarism, growth hormone deficiency, borrelia relapsing fever group, babesia duncani, GERD, bile gastritis, and fungal dysbiosis”.