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Question

Using the conversion assumption provided in a research brief that each additional 10 g/day of dietary fiber increases average daily stool wet weight by approximately 20 g/day, estimate the expected increase in stool wet weight if a person increases fiber intake from 12 g/day to 30 g/day. Show calculations.

Accepted Answer

Approximately 36 g/day increase in average stool wet weight.

Answer

Approximately 20 g/day increase in stool wet weight since any fiber increase beyond 10 g plateau quickly.

Answer

Approximately 72 g/day increase in stool wet weight because each gram of fiber increases stool mass by 4 g under physiological conditions.

Answer

No change in stool wet weight because fiber only affects stool frequency but has no measurable effect on mass.