What tuna has the highest amount of mercury? Answering the Top Question
                                
                                
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                                    4 min read                                
                            
                                According to the U.S. Food and Drug Administration (FDA), mercury levels vary significantly among tuna species, with larger, longer-living fish accumulating the most mercury over their lifespan. This guide will detail exactly what tuna has the highest amount of mercury and provide practical advice for making informed and healthier choices when selecting seafood.