Another case study patient with elevated myeloperoxidase of 361. CRP and other inflammatory markers normal. Been treated for SIBO before. Doctor’s Data and DUTCH are normal. Do you think that another SIBO test is warranted and could be the cause of the elevated myeloperoxidase?

Chris Kresser:  It’s possible, but there are a lot of potential causes of that. And I’m less familiar with the sensitivity and specificity of myeloperoxidase and where to go looking for that particular marker. But I wouldn’t go looking for SIBO obsessively if it’s been treated successfully and the patient’s symptoms are better. I think there are other potential causes there, things that we’re not necessarily covering in this course: heavy metals, mold toxicity, autoimmunity. I’m not sure what other work you’ve done so far. But those are some areas that I might look.