Which fish do not have heavy metals? A Guide to Safer Seafood
                                
                                
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                                    4 min read                                
                            
                                According to the FDA, nearly all fish contain trace amounts of methylmercury, a type of heavy metal, but the levels vary significantly depending on the species. For those concerned about contamination, knowing which fish do not have heavy metals in high concentrations is key to enjoying seafood's numerous health benefits safely.