Which Olive Oil Has the Highest Number of Polyphenols?
                                
                                
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                                    3 min read                                
                            
                                According to a 2021 study, the highest total phenolic content ever recorded in an olive oil sample reached 4947 mg/kg. Determining which olive oil has the highest number of polyphenols depends on numerous factors, including the olive variety, harvest time, and extraction method.