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Food Poisoning Linked to Eating Fish Is on the Rise — Leaving Some Victims With Strange Neurological Effects

Ciguatera poisoning causes creepy symptoms that go beyond gastrointestinal distress. And unlike E. coli or Salmonella, you can’t kill ciguatera by cooking it.

ByBrianna Randall
Credit: fizkes/Shutterstock

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It sounds more like the opening of a James Bond movie than a scene from a restaurant near you: A couple sits down to enjoy a fancy seafood dinner, during which they unknowingly ingest a toxin they can’t taste, see or smell. Within a few hours — sometimes minutes — they succumb to a variety of bizarre symptoms.

After dinner, the victims may have numbness in their fingers, toes or mouth. Difficulty breathing. Vomiting, diarrhea, muscle aches, drooling. Some may even be left with lingering neurological symptoms, such as the reversal of hot and cold sensations (imagine sipping hot coffee and having it feel like ice on your tongue), or the feeling that their teeth are falling out.

This is ciguatera, a nonbacterial foodborne illness from seafood affecting between 50,000 and 500,000 people each year. Although it’s seldom deadly, it can cause people to experience severe gastrointestinal and neurological symptoms. ...

  • Brianna Randall

    Brianna earned the nickname “Nature Girl” at age 13 because she was always stopping to check out plants, animals, and cool rocks. She paired her love for crafting stories with her science degrees to become a journalist and communications specialist. Brianna is a well-published science writer based in Montana. Her stories have appeared in National Geographic, The Washington Post, Outside, CNN, Discover, BBC, Science News and dozens of other venues. When not writing, you can find her sailing, dancing, teaching yoga, snorkeling, biking, hiking, guitar-playing, or taking her kids on wild adventures near and far. Visit her website at briannarandall.com. Find her on X and Instagram.

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