NANP Board Practice Exam

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Why might mineral absorption be impacted by dietary fiber?

  1. Fibers release minerals rapidly in the digestive tract

  2. Minerals bind to fiber, becoming less available for absorption

  3. Fiber increases the acidity in the digestive tract

  4. Fibers neutralize nutrients in the digestive tract

The correct answer is: Minerals bind to fiber, becoming less available for absorption

Dietary fiber can indeed impact mineral absorption in the digestive tract. One way this can happen is by minerals binding to the fiber, making them less available for absorption by the body. This means that even if minerals are present in the diet, if they bind to fiber, the body may not be able to absorb them effectively. This can interfere with the body's ability to utilize essential minerals for various physiological functions.

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