Soybeans and soy products CAN be sources of oligosaccharides, especially of GOS (some fructans, too). But not all soy products are significant sources. If you know two things about fructans and GOS you will be on your way to understanding which soy foods you can include on your low-FODMAP diet.
Corn, Beans, and Rice: Where Do They Fit on Low-FODMAP Diets?
Why Lactase Enzyme Supplements Don’t Always Work
On Bread
The IBS-Free Approach to FODMAP Stacking
IBS Myth: No Dairy for IBS
Many people with IBS are under the impression that everyone with IBS (or maybe just everyone, period) should avoid “dairy.” And who can blame them, after hearing this advice passed around by any number of authors, bloggers, celebrities and even healthcare professionals. I don’t share that view. Although I recognize that milk and milk products are a common cause of abdominal pain, excess gas, bloating, diarrhea and constipation, that is no reason to over-generalize and say that everyone with IBS should avoid them. There are some individuals who actually do need to avoid all dairy products to manage their IBS, but in my experience that is the exception, not the rule.