What is the most unhealthiest fish in the world?: A comprehensive guide to unsafe seafood
                                
                                
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                                    8 min read                                
                            
                                With a neurotoxin up to 1,200 times more poisonous than cyanide, the pufferfish, or fugu, can be lethal if improperly prepared, demonstrating the most extreme form of risk in seafood. But when asking **what is the most unhealthiest fish in the world?**, the answer is more complex, involving varying dangers from mercury content and unsanitary farming conditions.