SKU: 97374097310

Natural Factors Vitamin K2 100 mcg - 60 Capsules

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Description

Natural Factors Vitamin K2 100 mcg - 60 CapsulesProduct Information Natural Factors Vitamin K2 features vitamin K2 as menaquinone 7 (MK 7), an advanced, fat soluble form of vitamin K that serves multiple functions in the body. The K family consists of a trio of vitamins: K1 (phylloquinone), naturally occurring in leafy green vegetables and plant oils; K2 (mena quinone) present in butter, cows liver, eggs, certain cheeses and natto, a fermented soybean food; and K3, a synthetic form of the vitamin.

Product Information

Natural Factors Vitamin K2 features vitamin K2 as menaquinone-7 (MK-7), an advanced, fat-soluble form of vitamin K that serves multiple functions in the body. The K family consists of a trio of vitamins: K1 (phylloquinone), naturally occurring in leafy green vegetables and plant oils; K2 (mena-quinone) present in butter, cows liver, eggs, certain cheeses and natto, a fermented soybean food; and K3, a synthetic form of the vitamin. K3 has been shown to have toxic effects on the liver and K1 doesn’t have adequate benefits for calcium metabolism to dramatically improve osteoporosis or atherosclerosis. Only K2 in the form of MK-7 has been shown to offer 24-hour protection from a single daily dose. Other commercially available subtypes of K2, such as MK-4, only last four to six hours in the body and are required in much larger dosages to be effective. 

Vitamin K1 is easy to obtain from green leafy vegetables. The bacteria in our intestines will convert some of that to K2, but not enough to prevent or treat atherosclerosis and osteoporosis. K2 is found in the diet in natto, a fermented soybean food popular in Japan, as well as in butter, meat, egg yolks, and organ meats from animals that are fed grass instead of grain. As grass-fed animal products are rare nowadays and a taste for natto is difficult to acquire for most Westerners, a vitamin K2 supplement is the best way to ensure you are getting an optimal daily dose of this important nutrient. 

Researchers worldwide are only beginning to uncover the many essential roles that vitamin K2 plays in our health. Our growing understanding of this nutrient is rapidly redefining cardiovascular disease as an illness of nutritional deficiency. In addition, a vitamin K2 deficiency appears to be an underlying factor in the development of diabetes and other cellular disease. Vitamin K2 also plays an essential role in bone metabolism and promoting healthy teeth. Vitamin K2 is naturally occurring in certain fermented foods such as Natto, but for most people, diet alone will not help them meet their daily requirement of vitamin K2. Additionally, medications such as statins (Cholesterol Lowering Drug) and Warfarin (Blood Thinning Drug) further lower the body's level and/or production of vitamin K2. Daily use of Natural Factors Vitamin K2 makes it easy to get optimum levels of this important nutrient.

Conditions associated with K2 deficiency 

  • Osteoporosis
  • Atherosclerosis
  • Diabetes
  • Varicose veins
  • Wrinkles
  • Dental cavities
  • Narrow, crowded dental arch
  • Crohn’s disease
  • Kidney disease
Ingredients

Each capsule contains:

Vitamin K2 (Menaquinone-7)
(MK-7) (natto bean)...................................100 mcg

Non-medicinal ingredients

Microcrystalline cellulose, vegetarian capsule (carbohydrate gum [cellulose], purified water), vegetable grade magnesium stearate (lubricant).

Please Note:

Vitamin K2 is very safe with no known upper limit or toxic dose. An optimal daily intake of vitamin K has not yet been established.

Additional Information
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SKU: 97374097310

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Derek Preston
Lowell, US
★★★★★ 5
Great buy
Size: 11, Color: Tan
Great fit comfortable look good
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Reviewed in the United States on May 12, 2026
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mike t.
Pawtucket, US
★★★★★ 5
Great shoes
Size: 14 Wide, Color: Black
My shoes look good and feel good and now I’m going to purchase the brown pair I saw
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Reviewed in the United States on April 24, 2026
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Nicholas D. Clark
West Palm Beach, US
★★★★★ 4
Don’t buy for restaurant industry
Size: 10.5, Color: Black, Size: 10.5, Color: Black
Good looking shoes, fairly comfortable and good value based on the description shared, so I don’t feel it’s fair to rate them lower than 4 stars. I had high hopes for them based on previous reviews from others saying they wore them in the food and beverage industry that mentioned their quality and durability, however I strongly recommend looking elsewhere if you do. I purchased these to wear working in a full service upscale restaurant and in less than two months have managed to have torn the material on the middle exterior section and the bottoms of the shoes are already completely worn down. Good design, but the durability needs to be improved if they’re to hold up for that industry.
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Reviewed in the United States on July 18, 2025
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Damon Richards
West Palm Beach, US
★★★★★ 1
DO NOT BUY (lasted less than 7 months)
Size: 11, Color: Black, Size: 11, Color: Black
I bought these for work as a bartender in August of 2025. By December, the tops were scuffed, frayed, and peeling beyond repair, and by February, the soles were coming off. I’ve never had a pair of shoes with such low quality.
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Reviewed in the United States on April 11, 2026
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Daniel Lucarell
West Palm Beach, US
★★★★★ 5
Most comfortable shoes, right out of the box!
Size: 8.5, Color: Cognac Napa Leather
Oh my! So, my ordering of shoes online has been hit or miss - 1/2 size too big or too small; too wide or not wide enough. Enter these Marc Joseph shoes… such a game changer. They fit like a glove, exceptionally comfortable, and easy to slip in and out of. I like them so much that I am shopping for another pair. So far, the size, quality, fit, feel, look, and comfort make this pair my dedicated first pick. Btw, I have been wearing them for six hours and they are still very comfortable! I highly recommend these shoes.
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Reviewed in the United States on September 28, 2025

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