A Perth dad is worried sick after he received a text from HelloFresh warning him that ingredients his family had already consumed had potentially been contaminated. Nick Mitchell was sent a text from the popular meal-kit provider on Monday telling him to throw out the leafy greens provided in his most recent delivery. "Our supplier has just advised, as of (09/09/2024), there may be a food health safety issue in the mixed salad or baby spinach that you received in your most recent HelloFresh box that can be harmful if consumed," the text message read. Know the news with the 7NEWS app: Download today "Please discard the product. If you have already consumed this recipe and are concerned, please contact us or seek medical advice." Mr Mitchell immediately rang the company for answers on what had contaminated the food and was told it could be Listeria. Listeria bacteria can be found in soil, water and animal feces and can cause fevers, muscle aches, nausea, vomiting and diarrhea in people who have been infected.