Select the reason why increased dietary fiber is a major component in the management of constipation.
A. Fiber affects the fluid and electrolyte supplements in the stomach and inhibits the sympathetic nervous system, resulting in an increase in the frequency of defecation.
B. Fiber increases stool bulk and fluid content and decreases transit time, resulting in an increase in the frequency of defecation.
C. Fiber decreases the number of microorganisms in the gastrointestinal (GI) tract, decreases the fluid content, and decreases transit time, resulting in a decrease in the frequency of defecation.
D. None of these are correct.
Answer: B
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