Is Mahi Mahi High in Mercury? Understanding the Levels
                                
                                
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                                    3 min read                                
                            
                                While some popular fish contain very high levels of mercury, studies from organizations like the Natural Resources Defense Council (NRDC) categorize mahi mahi as a 'moderate mercury' fish. This means that while it isn't completely mercury-free, it is generally considered a safer choice than larger, high-mercury predatory fish.