<<Disclaimer: Verify this information before applying it to your situation.>> I doubt that leaky gut affects the digestion of raw vegetables--it might create uncomfortable symptoms like bloating/swelling, etc. I've been GF for over 5 years and just had a followup intestinal permeability test (last one which showed severe leaky gut was 2 years ago). My gut is no longer"leaky" (yippee!) and I still cannot digest salads fully--I can see the pieces of lettuce are undigested. I have never like oils on my lettuce so I always eat them plain--dressing cannot be the culprit either. I was relieved to hear so many others had the same problem and I'm going to try the Beano route!! Vicki