I have suspected fructose intolerance. It really messes up my stomach. I'm having a breath test to confirm it in the next couple of weeks.
So I had my breath tests a long time ago as well as many other tests, and I actually don't have a Fructose Intolerance (much to my surprise!), however, my gastroenterolgist has diagnosed me with IBS, which can respond in the same way to fructose. I've been referred now to a dietician.
Belowen, apples and pears have a higher fructose-to-glucose ratio - so it could be the fructose that is causing you trouble.
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