How does the combination of fiber and water in lettuce contribute positively to combating constipation?
Answer
By helping to add necessary bulk and moisture to stool
Lettuce contributes significantly to healthy bowel movements primarily through its combined content of dietary fiber and high water volume. The fiber, particularly soluble types like pectin, provides structure and bulk within the intestines. Simultaneously, the high water content (up to 95% of mass) is incorporated into this fibrous bulk. This synergy results in stool that is both larger and retains more moisture, which are key physical factors necessary to promote regular transit and effectively combat constipation.
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