dsharr

I would think the opposite: good results on gluten-free diet = gluten intolerance. An endoscopy/biopsy may show nothing, depending on how long you've been on the diet and your villi have been healing. Better to request genetic testing.

I have had similar reactions to many foods. I believe the doctor who diagnosed you with leaky gut was onto something. You may find the following articles fascinating. "Leaky Gut: Can This Be Destroying Your Health?" Open Original Shared Link "Zonulin & Leaky Gut: A discovery that changed the way we view inflammation, autoimmune disease, and cancer...

It gave me 6-7 bouts of diarrhea per day and made my small intestine hurt under my rib cage. Took me too long to figure it out. Hope I can recover.

I personally have a problem with cellulose gum. I have a problem with all gums but guar gum, actually

Yes, I cannot tolerate microcristaline/microcrystalline cellulose, a derivative of cellulose gum. I'm unable to tolerate any vegetable gums or their derivatives. Microcrystalline cellulose appears under many different names, i.e. croscarmellose cellulose, croscarmellose sodium, carboxymethylcellulose, methylcellulose, hydro-ethyl methylcellulose, hydromellose...