NANP Board Practice Exam

Question: 1 / 400

Which type of fiber forms a gel-like substance when mixed with water?

Insoluble fiber

Resistant fiber

Simple fiber

Soluble fiber

Soluble fiber is the correct answer because it has the ability to dissolve in water and form a gel-like substance. This type of fiber plays an important role in digestion by helping to slow down the movement of food through the digestive system and promoting a feeling of fullness. Insoluble fiber, on the other hand, does not dissolve in water and instead adds bulk to stool and helps with bowel regularity. Resistant fiber is a type of insoluble fiber that resists digestion in the small intestine and helps to promote a healthy balance of bacteria in the gut. Simple fiber is not a common term used to describe dietary fiber and does not accurately represent any specific type of fiber. Therefore, soluble fiber is the most appropriate answer given the question and the other options.

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