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What is known about vitamin K2
According to the expert, vitamin K plays a crucial role in blood clotting, bone health, and cardiovascular function.
Vitamin K refers to a group of vitamins, including vitamin K1 (phylloquinone), primarily obtained from plant foods (leafy greens, blueberries), and vitamin K2 (menaquinone), which has several subtypes (MK-4–MK-13) and is found in animal products and fermented foods.
It is important to know that K vitamins are fat-soluble, meaning they dissolve in fats and oils. The forms differ not only in sources but also in how they function in the body.
“Unlike K1, which is quickly excreted, K2 circulates in the body longer—sometimes for several days. Its slower absorption gives it more time to influence various processes in the body,” Shvets added.
Main functions
Supports blood clotting
K vitamins help prevent excessive bleeding after injury. If blood is too thin, bruising occurs more easily, and there is a risk of dangerous internal bleeding. Vitamin K helps maintain blood at an optimal colloidal state—not too thick, not too thin.
Strengthens bones
Vitamin D, K, and calcium work together for bone health. Vitamin K activates the protein osteocalcin, which binds calcium for bone formation. Low K levels are associated with an increased risk of bone fractures.
Improves cardiovascular health
Calcium accumulation in the body can lead to hardening of tissues, organs, and vessels. Calcium deposits in arteries may cause hypertension, kidney disease, and other problems. Vitamin K activates a protein that prevents calcium from depositing in arteries.
According to the doctor, one study found that people consuming at least 32 mcg of vitamin K2 daily from food had a 50% lower risk of death from heart diseases linked to arterial calcification.
Foods rich in vitamin K2
Vitamin K2 is found in animal products and fermented foods. Foods highest in K2 include natto (fermented soy), Gouda cheese, blue cheese, and egg yolks.
It is important for people taking anticoagulants to consult a doctor before increasing K1 or K2 intake.
K1 is absorbed faster and is most beneficial when consumed from food. K2, on the other hand, can be an effective dietary supplement because it stays longer in the body.
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This material is for informational purposes only and should not be used for medical diagnosis or self-treatment. Our goal is to provide readers with accurate information about symptoms, causes, and methods of detecting diseases. RBС-Ukraine is not responsible for any diagnoses that readers may make based on materials from the resource. We do not recommend self-treatment and advise consulting a doctor in case of any health concerns.
