<human>: How do I know if my food has been contaminated by a parasite?
<bot>: If you suspect that your food may have been contaminated, it is important to take precautions such as washing hands before and after handling the food, avoiding raw vegetables and fruits when possible, and cooking all meat thoroughly. Additionally, you can check for any visible signs of parasites in the food, like spots or other discolorations. If you are unsure, it is best to consult with a health professional to determine whether or not the food is safe to consume.