What type of indigestible fiber, specifically mentioning fructans and inulin, do onions provide that serves as sustenance for beneficial gut bacteria in the large intestine?
Answer
Prebiotic fiber
Onions are identified as a valuable source of prebiotic fiber, which includes specific types such as fructans and inulin. The defining characteristic of prebiotic fiber is that it is indigestible by human enzymes. Consequently, this fiber travels intact to the large intestine where it fulfills a critical role: serving as essential food or fuel for the population of beneficial gut bacteria. By supporting the proliferation and activity of this 'good' bacteria, onions directly contribute to maintaining a balanced gut ecosystem, which is intrinsically linked to various aspects of overall well-being, including improved immunity and better mood regulation.
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