Vitamin K

Thorne’s Vitamin K helps maintain bone mineral density and supports healthy blood vessels.


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Vitamin K

Thorne’s Vitamin K contains three clinically studied forms of K – K1, and two forms of K2 (MK-4 and MK-7). It contains significantly more MK-4 than most other multiple-K products on the market.

Ingredient Information

Geometric Shape

Ingredient Amounts

Serving Size: 1 Capsules
Servings Per Container: 60
Name Amount
K1 1 mg
K2 (MK-4) 5 mg
K2 (MK-7) 90 mcg
Other Ingredients: Hypromellose Capsule, Microcrystalline Cellulose, Mixed Tocopherols, Silicon Dioxide

How to Use

Take 1 capsule one to two times daily or as recommended by one of our health coach professionals.

Vitamin K Details

K supports the healthy ability of the blood to clot, promotes healthy arteries, and supports healthy bone density. However, there are three types of K, and each one is responsible for different benefits. Thorne’s K is a complete formula that includes vitamin K1 and two forms of K2.

Benefits of Thorne’s Vitamin K:

  • Supports the normal and healthy ability of the blood to clot
  • Promotes strong bones
  • Helps maintain the health and elasticity of arteries
  • K “pairs up” with vitamin D in the body to help keep calcium in the bones where it belongs and out of the blood vessels and other soft tissues
  • Provides the highest quality, clinically studied forms of K1 and K2, as MK-4 and MK-7
  • Contains significantly more MK-4 than most products on the market and the MK-7 is MenaQ7,® the form used in the majority of MK-7 research
  • In addition, K offers nutritional support for oncology patients


Allergy Warning
This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients.

If pregnant, consult your health professional before using this product.

As Vitamin K interferes with the effect of anticoagulant drugs (like Coumadin), the concurrent use of these agents should be avoided.



Our Mission

We believe personalized, scientific wellness can extend the duration of one's health span, create happier and healthier lives, and feel one’s best at every age and life stage. Our ambition is to empower individuals to live healthier for longer through personalized, scientific testing and solutions. With a deep portfolio of personalized offerings – testing that provides individualized data, educational resources, and products that support specific health goals and needs – Thorne is here at every age and life stage. Thorne is redefining what it means to live healthier for longer.

How we know our supplements work

At Thorne, being able to rely on the safety and efficacy of our nutritional supplement products is the motivating force behind our clinical trials program. Our confidence that each product we formulate and manufacture works in the body comes from extensive clinical research and medical literature that substantiate the presence of each ingredient in each formula. In addition to confirming the safety of our products, clinical research helps us better understand their efficacy. And it paves the way for new discoveries. The ultimate goal of our research partnerships is to help us fulfill our mission of solving the biggest challenges in health and wellness.
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