Does Butter Oil Have K2? The Definitive Guide to This Essential Nutrient
                                
                                
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                                    4 min read                                
                            
                                Decades ago, pioneering dentist Dr. Weston A. Price discovered a nutrient he called 'Activator X' in the butter oil from cows grazing on nutrient-rich green grass. We now know this substance is Vitamin K2, confirming that high-quality butter oil does have K2.