• 90 mcg, 60 softgels
  • Item # 00065
MK-7 90 mcg, 60 softgels - Life Extension


  • 90 mcg, 60 softgels
  • Item # 00065

Jarrow Formulas® MK-7 (menaquinone-7) is an extract from non-GMO soybeans fermented with Bacillus subtilus natto. Vitamin K2 (menaquinones) is found in meat, eggs, and dairy products and is made by bacteria in the human gut, which provides a certain amount of the human vitamin K requirement.1 Vitamin K2 remains biologically active in the body far longer than K1.2 In contrast with the MK-4 form of vitamin K2, MK-7 is absorbed more slowly and is available to the body for longer and at higher levels.

The Rotterdam Heart Study, a large-scale, controlled clinical trial that tracked 4,807 participants for seven years, revealed that participants who ingested the greatest quantities of vitamin K2 experienced a better cardiovascular condition than people who ingested the least.3 High intake of vitamin K2 also corresponded to less calcium deposition in the aorta, whereas participants who consumed less K2 were more likely to show moderate or severe calcification.

Vitamin K functions as a cofactor for an enzyme responsible for carboxylation of specific bone proteins such as osteocalcin and matrix Gla protein (MGP), an inhibitor of vascular calcification.4 Impairment of the function of osteocalcin and MGP due to incomplete carboxylation results in an increased risk for low bone density and vascular calcification, respectively.5 Studies in which menaquinone-7 was used to counteract arterial calcification have determined that menaquinone-7 was more potent than menaquinone-4.

Benefits at a Glance

  • Remains active in the body longer than other forms of vitamin K
  • Supports vascular health
  • Supports bone health
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Frequently Bought Together

  • This Item: MK-7, 90 mcg, 60 softgels
  • PQQ , 20 mg, 30 vegetarian capsules

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  1. Prog Food Nutr Sci. 1992 Oct-Dec;16(4):307-43.
  2. Blood. 2007 Apr 15;109(8):3279-83.
  3. J Nutr. 2004 Nov;134(11):3100-5.
  4. Atherosclerosis. 2012 Dec;225(2):397-402.
  5. Adv Nutr. 2012 Mar 1;3(2):166-73.

Serving Size 1 softgel

Servings Per Container 60

Amount Per Serving

Vitamin K2 (as natural MK-7 [Menaquinone-7])

90 mcg

Other ingredients: Non-GMO medium chain triglycerides and olive oil. Softgel consists of gelatin, glycerin purified water and organic caramel.

No wheat, no gluten, no dairy, no egg, no fish/shellfish, no peanuts/tree nuts.

Dosage and Use
  • Take 1 softgel per day or as directed by your qualified healthcare professional.

If you have a medical condition, are pregnant, lactating, trying to conceive, under the age of 18, or taking medications (especially anticoagulants [e.g. warfarin/coumadin]), consult your healthcare professional before using this product.

Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of Life Extension. We do not verify or endorse any claims made in these reviews. Please read the full product reviews disclaimer.

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