Cheddar cheese, which is ingested at school by five-year-olds in items such as lasagne and macaroni cheese, has been identified as a possible cause of food poisoning episodes linked to a chemical called histamine, which can occur during cheese ripening. Although rare, some people may develop an allergic reaction after eating Cheddar cheese. The most common symptoms of food poisoning caused by eating contaminated foods are diarrhea, vomiting, and stomach cramps. The illness usually lasts for about 24 hours and can be severe if not treated promptly. Some patients with food poisoning may have a fever, headache, chills, or muscle pain. People who experience these symptoms after eating at restaurants should try to remember what they ate so that they can report their concerns to management or file a complaint. In conclusion, Cheddar cheese is a common cause of food poisoning in children. If you're concerned that your child has eaten too much cheese, take them to the doctor to make sure there's no more inside them than what's on their plate.