Question 10 (10 points) Dietary fiber is able to Speed up transit time, increase stool bulk, and therefore reduce exposure to carcinogens in the gut. Bind bile acids which potentially act as promoters of carcinogenesis, and also increase cholesterol re-absorption. Increase insulin sensitivity. Increase food intake of vitamins and minerals since food rich in fiber is generally a good source of vitamins and minerals.
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The question asks what dietary fiber is able to do. Each option presents a different effect of dietary fiber. Show more…
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Which statement best describes the role of nonfermentable fiber? Non-fermentable fiber is thought to decrease risk of constipation and colon cancer by increasing stool bulk and reducing transit time which leaves less exposure time for any consumed carcinogens. Non-fermentable fiber is thought to bind with bile salts that contain cholesterol and therefore allows cholesterol to be excreted rather than absorbed. Non-fermentable fiber is thought to slow the absorption of glucose in the intestine, preventing glucose spikes in the blood after consuming carbohydrates. None of the above.
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Which of the following is not an effect of fibers? a. Lowered risk of constipation and hemorrhoids b. Increased blood cholesterol levels c. Lowered risk of heart and artery disease d. Lowered risk of appendicitis and complications from diverticula e. Modulated blood glucose levels
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