I can vouch for that: when my OH was dry stone walling, he often found mouse nests comprising chewed up crisp packets in the walls, presumably having been dropped by hikers or, as is their habit, the hikers having stuffed them into wall. The mice then made a meal of the bits of crisps (and the salt?) and used the shredded packets as nesting material!

They will use anything, we had them in an outbuilding and they had used the very itchy insulation.

A second crop have emerged, I think a different species, smaller and darker with more prominent ears, three trapped in last two days.