Which of the following is a characteristic of refined grains?

Refined grains are typically characterized by being low in vitamins and other nutrients that are present in whole grains. During the refining process, the bran and germ, which contain much of the grain's nutritional value, are removed, leaving behind only the starchy endosperm. This process results in a product that lacks the fiber, vitamins, minerals, and antioxidants found in whole grains.

While whole grains offer many health benefits due to their higher fiber content and nutrient density, refined grains do not provide these advantages. Therefore, identifying that refined grains are low in vitamins aligns with its characteristics and correctly highlights the concern regarding nutrient loss during the refinement process.