I’ve heard barracuda is poisonous but you can eat it if it is tested on ants first. Is that true?


Auntie’s answer: I will do my best to answer your question, with full expectations that others will weigh in with their own ideas. Barracuda has that effect on people.

I have been too afraid to try barracuda myself, despite hearing how delicious and sweet that fish is, because I do know people who have ended up in hospital with ciguatera poisoning, which is what you can get from eating any large reef fish. I will spare readers the details of how that particular toxin gets concentrated in the fish, but the one important fact is that the risk of getting poisoned is higher in larger creatures, so if you are determined to try some barracuda — and my strong advice is don’t — stick to fish smaller than, say, 10 lbs.

Symptoms of ciguatera poisoning generally begin six to eight hours after eating the contaminated fish, and include nausea, vomiting, diarrhea, muscle pain, numbness, tingling, abdominal pain, dizziness and vertigo. Hot and cold sensation may be reversed. Severe cases of ciguatera poisoning may result in tearing of the eyes, chills, skin rash, itching, shortness of breath, drooling, and paralysis. And yes, in very rare cases people can die from it.

Still want to risk it?

I also want to add that despite being hospitalised and very ill, one of my friends still ate barracuda again, which was, not surprisingly, against medical advice. I guess that attests to how good that fish tastes – or how foolish my friend was.

As to testing if a barracuda is poisonous, in addition to the “see if an ant eats it” method, two other popular beliefs are flies will not land on contaminated fish and a silver coin will turn black if placed under the scales of a toxic barracuda.

Unfortunately, these and other non-scientific tests are basically bunk. I am sure that I will get people strenuously disagreeing with that statement, but I feel a lot more comfortable erring on the side of science here.

Of course, many have eaten barracuda, and will continue to do so, without suffering any ill effects, so it just depends if you are willing to take that risk. Personally, I have made my peace with never tasting barracuda, and sticking to the many other non-poisonous fish choices in our waters.