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Multiple Choice

Which dietary change is accurate for constipation management to promote softer stools and easier passage?

Increasing dietary fiber enables stools to form with more bulk and better water content, which softens them and makes them easier to pass. This happens because soluble fiber holds water and bulks up the stool, while insoluble fiber adds mass that stimulates bowel movements. Both types help normalize bowel habits when you’re constipated, and they work best when paired with adequate fluid intake. That’s why the statement that fiber adds bulk and aids passage is the accurate dietary change for constipation management. The other ideas—fiber reducing stool bulk, fiber decreasing transit time in a way that’s not consistent with typical practice, or fiber causing dehydration—don’t fit the usual, evidence-based effects of fiber on stool formation and movement.

Increasing dietary fiber enables stools to form with more bulk and better water content, which softens them and makes them easier to pass. This happens because soluble fiber holds water and bulks up the stool, while insoluble fiber adds mass that stimulates bowel movements. Both types help normalize bowel habits when you’re constipated, and they work best when paired with adequate fluid intake. That’s why the statement that fiber adds bulk and aids passage is the accurate dietary change for constipation management. The other ideas—fiber reducing stool bulk, fiber decreasing transit time in a way that’s not consistent with typical practice, or fiber causing dehydration—don’t fit the usual, evidence-based effects of fiber on stool formation and movement.