30-40% of patients with unexplained weight gain may have non-celiac gluten sensitivity or sub-clinical gluten enteropathy, according to Dr. David S. Klein, an expert in pain medicine. Dr. Klein has over 27 years of experience and is the author of over 50 publications, noting that gluten-related illnesses often present atypically, without classical gastrointestinal symptoms. He is the Medical Director of the Pain Center of Orlando and specializes in diagnosing gluten sensitivity in patients with unexplained health issues.

2. 30-40 %

3. Weight Gain and Unsuspected Gluten
Sensitivity, Sub-Clinical Gluten Enteropathy
David S. Klein, M.D. FACA, FACPM :
The ‘Classical Presentation’ is the Exception, not
the Rule
David S. Klein, MD has practiced pain medicine for the past 27 years and is the author of
over 50 published articles and textbook chapters and has lectured extensively. He is a
member of the American Board of Anesthesiology, American Board of Pain Medicine,
American Academy of Pain Management, American Board of Minimally Invasive Medicine &
Surgery, and has Sub-Specialty Certification in Pain by the American Board of
Anesthesiologists. Dr. Klein is presently the Medical Director of the Pain Center of Orlando,
located at

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