Which of the following substances reduces constipation in humans?
A
Cholesterol
B
Fiber
C
Fat
D
Protein
Correct Option:
B
Explanation
Dietary fibre helps prevent or reduce constipation by increasing stool bulk and helping retain water in the intestinal contents. This encourages normal movement through the colon. Cholesterol, fat, and protein do not perform this mechanical stool-bulking function.
