Which specific type of fiber in prunes adds bulk to waste, facilitating quicker transit through the digestive tract?

Answer

Insoluble fiber

Insoluble fiber works by adding bulk to the waste material, which aids in facilitating quicker transit through the digestive tract, unlike soluble fiber which helps soften stools.

Which specific type of fiber in prunes adds bulk to waste, facilitating quicker transit through the digestive tract?
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