Vitamin K

Support for blood clotting and bone health

Vitamin K plays an essential role in several bodily processes. It contributes to the proper functioning of blood clotting, which is important for wound healing and stopping bleeding. This happens through the activation of clotting factors in the blood, which help form blood clots when needed.

Additionally, Vitamin K supports the maintenance of strong bones. It contributes to bone mineral density by promoting the production of osteocalcin, a protein that helps bind calcium to the bone structure.

Sources of Vitamin K

Vitamin K exists in two forms: Vitamin K1 (phylloquinone) and Vitamin K2 (menaquinone).

Vitamin K1 is mainly found in green leafy vegetables such as spinach, kale, broccoli, and Brussels sprouts.

Vitamin K2 is produced by gut bacteria and is found in animal products such as cheese and eggs, as well as in fermented foods like natto (fermented soybeans).

Since Vitamin K is fat-soluble, it is better absorbed when consumed with fat-rich foods such as olive oil, nuts, or fatty fish.

Forms and Absorption

Vitamin K is absorbed in the small intestine and partially stored in the liver. Vitamin K1 is quickly used by the body, while Vitamin K2 has a longer-lasting effect and remains more available in the body.

For optimal absorption and function of Vitamin K, a varied diet with sufficient green vegetables and possibly fermented foods is recommended.

synonyms for Vitamin K: Vitamin K, vitamin K1, phylloquinone, vitamin K2, menaquinone-4, menaquinone-7 and MK-7.

Products with Vitamin K

Product Form Standard dosage
Vitamin K (as K1 phylloquinone, K2 MK-4 menaquinone-4, and K2 MK-7 menaquinone-7) 2,800 μg per 1 softgels
Vitamin K2 372 μg per 1.2 ml
Vitamin K (as menaquinone-7) 180 μg per 7.9 grams
Vitamin K (as menaquinone-7) 180 μg per 7.9 grams
Vitamin K (as phylloquinone (K1), menaquinone-7 (K2)) 120 μg per 10 grams
Vitamin K (as phylloquinone (K1), menaquinone-7 (K2)) 120 μg per 10 grams
Vitamin K (as phylloquinone (K1), menaquinone-7 (K2)) 120 μg per 10 grams
Vitamin K2 (as menaquinone-7) 90 μg per 0.5 ml
Vitamin K (as Vitamin K1 and Vitamin K2 (as all‑trans MK‑7)) 75 μg per 2 capsules
Vitamin K2 (as menaquione-7) 50 μg per 8 capsules
Bulletproof Vitamins A-D-K
Product
Form Vitamin K (as K1 phylloquinone, K2 MK-4 menaquinone-4, and K2 MK-7 menaquinone-7)
Standard dosage 2,800 μg per 1 softgels
Cymbiotika Vitamin D3+K2+CoQ10
Product
Form Vitamin K2
Standard dosage 372 μg per 1.2 ml
Bulletproof Greens Powder
Product
Form Vitamin K (as menaquinone-7)
Standard dosage 180 μg per 7.9 grams
Bulletproof Greens Packets
Product
Form Vitamin K (as menaquinone-7)
Standard dosage 180 μg per 7.9 grams
NuZest Good Green Vitality (300 g)
Product
Form Vitamin K (as phylloquinone (K1), menaquinone-7 (K2))
Standard dosage 120 μg per 10 grams
NuZest Good Green Vitality (120 g)
Product
Form Vitamin K (as phylloquinone (K1), menaquinone-7 (K2))
Standard dosage 120 μg per 10 grams
NuZest Good Green Vitality (750 g)
Product
Form Vitamin K (as phylloquinone (K1), menaquinone-7 (K2))
Standard dosage 120 μg per 10 grams
Quicksilver Scientific Nanoemulsified D3K2
Product
Form Vitamin K2 (as menaquinone-7)
Standard dosage 90 μg per 0.5 ml
NoordCode Everyday Essentials
Product
Form Vitamin K (as Vitamin K1 and Vitamin K2 (as all‑trans MK‑7))
Standard dosage 75 μg per 2 capsules
Neurohacker Collective Qualia Life EU
Product
Form Vitamin K2 (as menaquione-7)
Standard dosage 50 μg per 8 capsules