Final answer:
Fermentable fibers are degraded by gut bacteria in the large intestine, producing short-chain fatty acids that have diverse roles in gastrointestinal health.
Step-by-step explanation:
Fibers that are degraded by gut bacteria are called fermentable fibers. These fibers, such as resistant starch and inulin, are metabolized by the bacteria in the large intestine to produce short-chain fatty acids. The production of short-chain fatty acids has diverse roles in gastrointestinal health.