“Ciguatera fish poisoning” "the incurable illness caused by coral algae toxins that accumulate in large tropical reef fish. "
“they put peanut-linked salmonella infections to shame”
"symptoms  diarrhea, vomiting and fatigue  but also with a dangerously slow heart rate and neurological problems that caused her hands and feet to tingle painfully and, oddest of all, reversed her sense of hot and cold. Some patients also say they feel like their teeth are falling out  and the symptoms can linger for years. "
Don’t get scared off see food all together, "Fish-lovers hoping to avoid ciguatera poisoning can take a couple of steps. First, ask where the fish is from. If a restaurant or supplier can’t say, be wary.
Second, eat small portions of different fish instead of larger servings of a single fish. That will perhaps lessen the dose of any toxin present.
Finally, consider avoiding certain fish altogether. "
Here is the list of fish they mention:
The following species may pose a danger of ciguatera fish poisoning:
The fish list sounds similar to the ones to avoid (at least for children and women under 40-45) because of mercury. Same reasons too. Big predatory animals eat smaller animals who eat bad stuff. Stuff builds up in the bigger animals.
Check before eating fish caught in local waters.
• State health departments have guidelines on fish from local waters. Or get local fish advisories at the U.S. Environmental Protection Agency Website (www.epa.gov).
• If you’re unsure about the safety of a fish from local waters, only eat 6 ounces per week and don’t eat any other fish that week.
Eat a variety of small, young non-fatty fish.
• Ask your fishmonger to recommend lean, small fish that are caught young."
Grouper has higher levels of mercury as well.
I think the key is the “Eat a variety of small, young non-fatty fish.” statement.
I like probably everyone else never heard this before.
Although it would be a cool April Fool’s to make someone feel cold when they are hot and vise versus