Why are cooking oils so bad for you? An in-depth look at their hidden risks
                                
                                
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                                    4 min read                                
                            
                                A modern Western diet has drastically shifted the omega-6 to omega-3 fatty acid ratio from an ancestral 1:1 balance to as high as 15:1 or 20:1, a change largely driven by the pervasive use of refined vegetable oils. This fatty acid imbalance is at the core of many health concerns linked to cooking oils.