(say it is a clear-cut case where relevant authorities have compounded the food business and evidence such as lab test report, medical report, and medical fee receipt available) You may file a claim against the food business for compensation and await their response:- 1. Issue a letter holding the food business supplier responsible for causing food poisoning resulting directly from the food bought and consumed. The letter shall state those costs incurred, i.e hospital bills, loss of income, purchase receipts, food packing, expenses for travelling, reports, photographs, if any etc 2. Also include evident copy of compound issued by the relevant authorities, its finding or investigation report, lab test report, medical report and other relevant documents to substantiate the claim