Which of the following is NOT commonly considered food for stored product pests?

Stored product pests, such as weevils, moths, and beetles, primarily infest food products, looking for organic matter to feed on. Processed grains, dried fruits, nuts, and seeds are all typical food sources that these pests target and thrive upon. Each of these items contains nutrients that are suitable for sustaining insect life.

On the other hand, paper products do not provide the nutritional value that stored product pests require. While pests might occasionally be found in environments where paper products are stored, they do not feed on them. Instead, paper products may serve as an incidental habitat but are not a food source for these pests. This distinguishes them from the other options, making them the correct answer to this question.