RSN Functional Nutrition Institute

Take the SIBO Assessment

Find out how likely it is that SIBO is behind your symptoms, and what may have caused it in the first place.

Bloating, gas, reflux, unpredictable bowels. Most people get told it's IBS, handed a low FODMAP list, and sent home. But SIBO doesn't show up out of nowhere. Something disrupted your gut first, and unless you find that, the bacteria come right back after treatment.

This assessment does two things. It scores your likelihood of SIBO based on the symptom patterns we look for clinically, and it flags the root causes most likely driving it in your case, whether that's a past food poisoning, low stomach acid, thyroid dysfunction, chronic stress, or motility problems from an old injury.


Takes about 1 minute.

When you finish, you'll get instant access to:

  • Your personalized SIBO likelihood score and the root causes flagged in your results
  • The Beyond SIBO Masterclass, where I walk through why SIBO relapses and how to actually break the cycle
  • The SIBO ebook covering the full root cause framework
  • Our guides on testing, including which tests are worth your money and how to read your results
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