Vitamin K is an important nutrient, but there are actually two distinctly different forms of vitamin K: vitamin K1 and vitamin K2. K2 is also known as menaquinone.
It is an important fat-soluble vitamin that supports healthy blood circulation, bone health, bone density, immune system function, and heart health. Vitamin K2 also supports how vitamin D is stored in the body.†
Both forms of vitamin K are available from dietary sources. Phylloquinone, or vitamin K1, is mostly found in leafy green vegetables. K2 is found in animal sourced foods like butter, cheese, meat, egg yolks, and natto.
Explore Seeking Health’s best vitamin K supplements. Vitamin D3+K2 capsules provide the form of vitamin K2 known as menaquinone-7. Vitamin K2 MK-7 is derived from fermented soy. Vitamin D3+K2 Drops provide 50 mcg of vitamin K2 as menaquinone-4 for those who need a soy-free version. Both dietary supplements provide vitamin K2 in bioavailable forms. Vitamin K is also in the MK-7 form in multivitamins like Optimal Multivitamin and Optimal Prenatal.†
Seeking Health supplements are gluten-free and non-GMO.
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