Zearalenone has not been evaluated previously by the Committee, although a mammalian metabolite, alpha-zeralanol (zeranol), was considered by the Committee at its twenty-sixth, twenty-seventh, and thirty-second meetings (Annex 1, references 59, 62, and 80) for use as a veterinary drug. The Committee allocated an ADI of 0-5 µg/kg bw at the last meeting.