What is the most unhealthy fish to eat in the world?
                                
                                
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                                    4 min read                                
                            
                                According to the FDA, certain fish like shark, swordfish, and Gulf of Mexico tilefish are on the 'Choices to Avoid' list due to high mercury levels. Determining what is the most unhealthy fish to eat in the world involves examining factors like mercury accumulation, environmental contaminants, and farming methods that can compromise nutritional value and safety.