Dr. Jason Hawrelak presents a case study (15-years in the making) and his research data on which substrate is best for diagnosing SIBO. The results are very surprising! 

Dr. Jason Hawrelak is Head of Research at ProbioticAdvisor.com. His passion for gastrointestinal health, the GIT microbiota, and probiotics was ignited during the final year of his undergraduate training. Subsequently, Dr Hawrelak did his Honours (First Class) and PhD degrees in the areas of the gastrointestinal microbiota, irritable bowel syndrome, and the clinical applications of pre- and probiotics. He has written extensively in the medical literature  on these topics – including 16 textbook chapters – and his research has been cited over 800 times. Dr. Hawrelak has taught health professionals at both the undergraduate and postgraduate level for the past 18 years.