Some foods can look perfectly fresh and harmless while still carrying microscopic parasites if they are contaminated or improperly handled. That doesn’t mean you should fear these foods, but knowing where risks can occur can help you prepare meals more safely.

Raw or undercooked fish is one example. Certain freshwater fish and some marine species can carry parasites that may infect people when the fish is eaten raw or insufficiently cooked. Proper cooking or appropriate freezing methods can greatly reduce this risk.

Undercooked pork is another food that deserves attention. Pork can potentially contain parasites when it comes from contaminated sources or is not cooked properly. Thorough cooking is one of the simplest ways to make it safer.

Fresh fruits and vegetables can also become contaminated. Produce may pick up parasites from contaminated soil, water, animals, or handling. Rinsing fruits and vegetables thoroughly under running water can help remove dirt and some contaminants from their surfaces.

Raw or undercooked freshwater plants can carry parasites as well. Certain aquatic plants can become contaminated in environments where infected animals or contaminated water are present, making proper cleaning and cooking especially important.

The important thing to remember is that finding a parasite in food is not common when proper food-safety practices are followed. The risk depends heavily on the food, its origin, storage, preparation, and whether it is cooked adequately.

Washing your hands before preparing food, keeping raw meat and seafood separate from ready-to-eat foods, cleaning kitchen surfaces, and refrigerating perishables promptly can all reduce the chance of foodborne illness.

When eating fish, meat, or other foods that may carry parasites, following recommended cooking temperatures is especially important. Restaurants and food producers also use specific safety procedures to reduce these risks.

You don’t need to eliminate these foods from your diet. Instead, focus on safe preparation, proper cooking, and good hygiene. A few simple habits can make everyday meals significantly safer while allowing you to continue enjoying the foods you love.