Menaquinone-7 (MK-7) is a form of vitamin K2 with high bioavailability. It remains active in the bloodstream far longer than vitamin K1 found in greens or synthetic K3. The body moves MK-7 to tissues outside the liver. This form suits once-daily dosing because it sticks around.
This supplement supports bone mineralization by steering calcium into the bone matrix. MK-7 also helps maintain arterial elasticity by slowing calcium buildup in vessel walls. People choose it over shorter-acting vitamin K forms for that sustained effect.
Take one softgel or capsule with a meal that contains fat. Fat improves absorption of this fat-soluble vitamin. Levels rise gradually over weeks, so consistency matters.
Caution: MK-7 can interfere with anticoagulant drugs like warfarin. People who have malabsorption conditions may need a different dose. Always consult a healthcare provider before starting if you take blood thinners or have a clotting disorder.