Why is king mackerel unhealthy to eat? Understanding the mercury risks
                                
                                
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                                    3 min read                                
                            
                                According to the U.S. Food and Drug Administration (FDA), king mackerel is one of four fish that children and pregnant women should completely avoid due to high levels of toxic methylmercury. This makes understanding why is king mackerel unhealthy a crucial step for making informed dietary choices.