However, these symptoms are not specific to parasites.

Many other infections and medical conditions can produce the same symptoms.

If symptoms persist after eating potentially contaminated food—especially raw or undercooked meat, fish, or freshwater crustaceans—tell your healthcare professional what you ate and when you ate it.

That information can be extremely useful when deciding whether testing is appropriate.

How to Protect Yourself From Foodborne Parasites

You don't need to avoid meat, fish, vegetables, or seafood.

Instead, follow basic food-safety practices:

Cook meat thoroughly.

Cook freshwater fish and crustaceans thoroughly.

Be cautious with raw seafood.

Wash fresh produce carefully.

Use safe drinking water.

Wash your hands before preparing food.

Keep raw meat separate from ready-to-eat foods.

Clean knives, cutting boards, and preparation surfaces.

Buy seafood and meat from reputable sources.

These habits reduce the risk of many foodborne infections—not just parasites.

The Bottom Line

There are no five everyday foods that are simply “especially rich in parasites.”

That viral claim is misleading.

Instead, certain foods—including raw or undercooked pork, raw or undercooked fish, freshwater fish, freshwater crabs or crayfish, and contaminated raw produce—can transmit parasites when food-safety precautions aren't followed.

The risk depends on the specific foo