For individuals managing severe IBS or IBD, what substance, increased by fermentation, might cause gas or bloating when consuming Idli?

Answer

Increased fermentable carbohydrates known as FODMAPs.

While fermentation generally aids digestion by pre-breaking down complex structures, it simultaneously introduces higher levels of specific carbohydrates classified as FODMAPs (Fermentable Oligosaccharides, Disaccharides, Monosaccharides, and Polyols). In individuals already suffering from sensitive conditions like Irritable Bowel Syndrome (IBS) or Inflammatory Bowel Disease (IBD), these fermentable carbohydrates, even though partially processed, can still be rapidly fermented by gut bacteria in the lower GI tract, leading directly to uncomfortable symptoms such as excessive gas production or bloating.

For individuals managing severe IBS or IBD, what substance, increased by fermentation, might cause gas or bloating when consuming Idli?
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