What type of soluble prebiotic fiber found in radicchio acts as "food" for beneficial gut bacteria?
Answer
Inulin
Radicchio provides substantial digestive health benefits largely due to its specific fiber composition, notably containing inulin. Inulin is classified as a type of soluble prebiotic fiber, which distinguishes it from regular dietary fiber that mainly adds bulk. The function of inulin is to pass through the upper digestive tract undigested, thereby reaching the large intestine where it serves as sustenance, or 'food,' specifically for the beneficial bacteria residing there, known as gut microbiota. This selective feeding process is fundamental to cultivating a more robust and diverse internal gut population.

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