There are many foods rich in vitamin K₂, such as fermented foods such as natto and dairy products such as cheese, which contain some amount of vitamin K₂. 1. Fermented foods: such as natto and curd, which are made from fermented beans, are rich in vitamin K₂ and can boost the levels of vitamin B₆ and vitamin B₁₂. 2. Dairy products: Vitamin K₂ is higher in dairy products such as cheese, cream cheese, butter, milk and its dairy products, which can be consumed appropriately to supplement vitamin K₂. Vitamin K₂ content in food is limited, and for those with vitamin K₂ deficiency, supplementation with vitamin K₂ preparations is required under the supervision of a physician.