Food poisoning is a vicious and painful illness, but luckily it is temporary, should pass quickly, and, in most cases, can be treated at home. Here’s everything you need to know about food poisoning, including the symptoms, how long the illness lasts, when to seek medical attention, and options for treatment. Causes, signs, and symptoms of food poisoning Food poisoning is caused by eating food contaminated by viruses, bacteria, toxic chemicals, or parasites. In ...