Irritable Bowel Syndrome Message Boards | We need a scientific chat room

It isn't a matter of solublity. It is the degradation of fibre in the presence of ions and heat. Here is the reference. I can send you the full paper if you want. The experiment compared boiling carrots in 10, 100 and 400 mM NaCl and CaCl2 for 0, 4 and 25 mins.

Nyman, E. M. G.-L. and S. J. M. Svanberg, 2002: Modification of physicochemical properties of dietary fibre in carrots by mono- and divalent cations. Food Chemistry, 76, 273-280.

Perhaps it is the local (i.e. cellular or molecular) SF/IF ratio that makes a difference. When there are large bits of IF the local SF/IF could be quite low resulting in cellular distress. I also believe that starch may play a role too. A personal example is that I can eat 2-3 tbps of pureed lentils on a 1/2 cup rice usually without any problem but I cannot handle oat meal with large pieces of bran at all.

My research focus is complex systems and my educational background is biophysics, molecular biology and computer science.

Maybe Heather can create a scientific chat room for those of us that want to discuss the science of IBS. What say Heather?

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STABLE: ♂, IBS-D 50+ years - Science of IBS

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