Can you take vitamin K1 and K2 together?
Regardless of the reason, the evidence suggests that taking in vitamin K2 in addition to K1 is likely beneficial to help protect against vascular calcification.
Is vitamin K1 the same as K2?
Vitamin K1 is the predominant form of vitamin K present in the diet [6,7]. K1 is predominantly found in green vegetables and plant chlorophylls, whereas K2 menaquinones are synthesized by bacteria  and are primarily found in food where bacteria are part of the production process [5,9].
What foods contain vitamin K1 and K2?
Vitamin K1 is mainly found in plant-based foods like leafy green vegetables and accounts for the vast majority of vitamin K sources in the human diet. Vitamin K2 is primarily found in animal products like pork and cheese.