What animals eat horseradish?

There is no evidence to suggest that any animals actively seek out or consume horseradish as a primary food source. Horseradish has a pungent and somewhat bitter taste due to the presence of compounds such as allyl isothiocyanate, which may discourage consumption by many animals. Some insects or small organisms might ingest small amounts when feeding on the leaves or other parts of the horseradish plant, but it is not a significant part of their diet.