Dietary fiber is fermented by
a. salivary amylase.
b. pancreatic amylase.
c. bacteria in the colon.
d. bacteria in the rectum.
C
Dietary fiber is fermented by bacteria in the colon. Human enzymes (salivary and pancreatic amylase) cannot digest dietary fiber. By the time feces reach the rectum, they are largely solid and little fermentation takes place.
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