Description

Vitamin K plays a vital role in supporting normal blood clotting, maintaining healthy arteries, and promoting healthy bone density.*

For complete support, Thorne’s Vitamin K formula provides a comprehensive blend of three key types of vitamin K – vitamin K1, vitamin K2 as MK-4, and vitamin K2 as MK-7 – each with distinct clinical support.


Benefits of Thorne’s Vitamin K

  • Supports the body’s natural and healthy blood clotting function*
  • Contributes to bone strength and density*
  • Aids in maintaining arterial health and flexibility*
  • Works in synergy with magnesium to help direct calcium into bones and away from blood vessels and soft tissues*


Features of Thorne’s Vitamin K

  • Convenient 1-capsule serving size
  • Delivers premium, clinically researched forms of vitamin K1 and K2 (as MK-4 and MK-7)
  • Provides a higher concentration of MK-4 than most competing products
  • Formulated with MenaQ7® – the most widely studied form of MK-7 


This product has been third-party tested and certified to verify what's in the package matches what's on the label and to confirm it contains no unsafe levels of contaminants, such as heavy metals, pesticides, and microorganisms. 

Suggested Use:

Take 1 capsule one to two times daily or as recommended by your health-care practitioner.

Warnings:

ALLERGY WARNING

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

PREGNANCY

If pregnant, consult your health-care practitioner before using this product.

INTERACTIONS

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

FAQs
Frequently asked question

Is Thorne's Vitamin K worth buying compared to a basic Vitamin K2 supplement?

Yes, Thorne's Vitamin K stands out because it combines three forms of vitamin K — K1, K2 as MK-4, and K2 as MK-7 — in one formula. Most basic supplements only include one form. This comprehensive blend provides broader support for blood clotting, arterial health, and bone density, making it a stronger choice for those seeking complete cardiovascular and skeletal support.

Where can I buy Thorne Vitamin K and is it available without a subscription?

Thorne Vitamin K is available directly on this product page with no subscription required. You can purchase a one-time supply or opt into a subscription for convenience and savings. Buying directly ensures you receive a genuine product backed by Thorne's quality standards and customer support.

What does Vitamin K do for heart and vascular health?

Vitamin K helps regulate calcium in the body, directing it into bones rather than arterial walls. This process supports healthy, flexible arteries and reduces calcium buildup. Specifically, Vitamin K2 activates proteins that help maintain cardiovascular function, making it a valuable nutrient for long-term heart and vessel health.

What is the difference between Vitamin K1 and Vitamin K2?

Vitamin K1 primarily supports healthy blood clotting, while Vitamin K2 — found in two forms, MK-4 and MK-7 — plays a larger role in bone density and arterial health. MK-7 has a longer half-life in the body, providing more sustained activity. Thorne's formula includes all three types for comprehensive coverage.

Who should consider taking a Vitamin K supplement?

Adults concerned about bone strength, cardiovascular health, or healthy blood clotting may benefit from Vitamin K supplementation. It can be especially relevant for those with low dietary intake of leafy greens or fermented foods. Always consult your healthcare provider before starting any new supplement, particularly if you take blood-thinning medications.

Are there any side effects or interactions I should know about with Vitamin K?

Vitamin K is generally well tolerated at recommended doses. However, it can interact with blood-thinning medications like warfarin, potentially affecting their effectiveness. If you are on any anticoagulant therapy or have a clotting disorder, consult your doctor before use. Healthy individuals following suggested dosing typically experience no adverse effects.

{"statementLink":"","footerHtml":"","hideMobile":false,"hideTrigger":false,"disableBgProcess":false,"language":"en","position":"left","leadColor":"#146ff8","triggerColor":"#146ff8","triggerRadius":"50%","triggerPositionX":"right","triggerPositionY":"bottom","triggerIcon":"people","triggerSize":"medium","triggerOffsetX":20,"triggerOffsetY":20,"mobile":{"triggerSize":"small","triggerPositionX":"right","triggerPositionY":"bottom","triggerOffsetX":10,"triggerOffsetY":10,"triggerRadius":"50%"}}
false