Which of the following is an accurate statement about dietary fiber?

• A. Dietary fiber increases the caloric density of foods and adds many extra calories.
• B. Most dietary fiber is found in processed snack foods and polished white rice.
• C. Fiber is a digestible polysaccharide identical to starch.
• D. Dietary fiber is an indigestible carbohydrate that adds bulk to stool and helps maintain regularity.

Answer: (D)