Keep your leftovers well sealed and separate. Raw meat and poultry, seafood, eggs, dairy products, pre-packaged food and soft cheeses are among the foods at higher risk of causing food poisoning. Keeping foods separate and well covered helps to combat potential cross-contamination. Some foods, for example those high in protein, may be more prone to causing food poisoning, but the simple rule is that all leftovers need to be cooled quickly, stored properly and eaten within the recommended amount of time.