Gut dysbiosis is a negative shift in the microbial communities within the small or large intestine resulting in health conditions or symptoms. Generally speaking, it is an imbalance of gut microbes compared to healthy individuals recognizing that everyone has a unique microbiota.
There are 4 types of gut dysbiosis including:
SIBO – Small Intestinal Bacterial Overgrowth
SIFO – Small Intestinal Fungal Overgrowth
LIBO – Large Intestinal Bacterial Overgrowth
IMO – Intestinal Methanogen Overgrowth
What are health conditions linked to dysbiosis?
They are many, and some would argue that almost or all health issues begin in the gut. But some prominent ones are:
Prevalence and significant microbiological shifts in each type of gut dysbiosis
How to diagnose gut dysbiosis
Treatment options
Gut microbes
Diet – Beyond the symptoms (you might be surprised to hear this!)
Why certain foods are problematic
Dietary recommendations
What else you can do (gut-friendly behaviors & dietary supplements)
Plant-based diet recommendations
The masterclass also includes audio and PowerPoint slides with hyperlinked peer-reviewed journal references.
If you need encouragement to give diet another try, watch this video by Judy (a retired RN and one of the Fast Tract Diet Facebook group admins) with Shivan Sarna (the host and producer of SIBO SOSⓇ). Judy was a candidate for perpetual SIBO, given that her ileocecal valve was removed. But not anymore because she has successfully addressed her SIBO with the Fast Tract Diet.
Dr. Norm Robillard earned his Ph.D. in microbiology from the University of Massachusetts, Amherst, where he studied Bacillus anthracis and other Bacillus species. His post-doctoral research at Tufts University focused on antibiotic resistance and gene transfer between gut microbes, including Bacteroides fragilis and E. coli.
Over the course of his career in the pharmaceutical and biotech industries, Dr. Robillard studied the genetics of antibiotic resistance, septic shock, viral illnesses, and both antimicrobial and antibody-based therapies. He later founded the Digestive Health Institute, where he developed the Fast Tract Diet—a science-based, root-cause approach to resolving functional gastrointestinal disorders, gut dysbiosis, other digestive and related health conditions.
As the author of the Fast Tract Digestion book series and creator of the Fast Tract Diet mobile app, Dr. Robillard was the first to identify excess intestinal fermentation as a key driver of reflux. He also introduced the link between gas-producing gut bacteria, intragastric pressure, and nutritional malabsorption as a mechanism behind reflux symptoms.
His latest work, the Fast Tract Digestion series, offers a safe, effective alternative to proton pump inhibitors (PPIs), H2 blockers, IBS medications, and antibiotics for conditions such as GERD, LPR, IBS, SIBO/IMO and related disorders.
If you're seeking a trusted, science-backed path to lasting relief, we invite you to:
📘 Read the book to learn the method
📞 Schedule a consultation (+1-844-495-1151) to receive a personalized plan for your gut health journey
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