Bottle of Smarter Vitamin K2 made with K2VITAL on a reflective table
Smarter Vitamin K2
Smarter Vitamin K2
USA made Smarter Vitamin K2 made with K2VITAL
Smarter Vitamin K2
Smarter Vitamin K2
Reviews 800,000+ orders
Vitamin K2 MK-7 + kale powder

100 mcg of K2. The form matters.

100 mcg of vitamin K2 as all-trans MK-7, made with K2VITAL®, plus 50 mg of kale powder in one mini softgel. Clearly labeled, easy to take, and third-party tested.

100 mcg Vitamin K2 as MK-7 All-Trans MK-7 • K2VITAL® 50 mg Kale Powder One Mini Softgel Daily
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Benefits
  • Supports the maintenance of healthy bones.*
  • Supports normal blood clotting function.*
  • Supports vitamin K-dependent proteins involved in normal bone metabolism.*
Ingredients

Each mini softgel provides 100 mcg of vitamin K2 as all-trans menaquinone-7 (MK-7), made with K2VITAL®, plus 50 mg of kale powder.

Other ingredients: bovine gelatin, vegetable glycerin, purified water, annatto, berry flavor, avocado oil, beeswax, and sunflower lecithin.

60 mini softgels per bottle • 60 servings

Contains bovine gelatin. Not vegetarian or vegan.

Suggested Use

Take one mini softgel daily, preferably with a meal, or as directed by a healthcare professional.

Important: If you take warfarin (Coumadin) or another vitamin K antagonist, do not start, stop, or change vitamin K supplementation without guidance from the healthcare professional managing your anticoagulation. Vitamin K can materially affect how these medications work.

Consult a healthcare professional before use if you are pregnant, nursing, taking medication, or have a medical condition.

Smarter Vitamin D3 5000IU (125mcg) made with Avocado Oil

Smarter Vitamin D3 5000IU (125mcg) made with Avocado Oil

D3 and K2 are usually taken together. Added to the same order.

$25.00

100 mcg of all-trans MK-7. Plus kale.

Bone Health Support

Vitamin K supports the maintenance of normal, healthy bones.*

Vitamin K-Dependent Proteins

Vitamin K is required for activation of proteins involved in normal blood clotting and bone metabolism.*

All-Trans MK-7

MK-7 is a long-chain form of vitamin K2 that remains in circulation longer than vitamin K1 in human research.

Kale Powder

50 mg of kale powder included in every mini softgel.

Smarter Vitamin K2 bottle

Two featured ingredients. Clearly labeled.

100 mcg of vitamin K2 as all-trans MK-7 made with K2VITAL®, plus 50 mg of kale powder. The softgel and supporting ingredients are fully disclosed in the ingredient list.

See Full Ingredients

100 mcg Vitamin K2

83% Daily Value • as all-trans MK-7

50 mg Kale Powder

Included in every mini softgel

Vitamin K2 mini softgel

Know which K you're getting.

Vitamin K supplements can use different forms. Check the form, amount, ingredient source, delivery format, and testing.

Smarter K2 What to Look For

Form

K2 as all-trans MK-7

Exact vitamin K form identified

Branded source

Made with K2VITAL®

Ingredient source and specification disclosed

Amount

100 mcg per softgel

Amount clearly stated per serving

Format

Mini softgel

A format that fits your routine

Testing

Third-party tested

Independent quality testing

800,000+ Orders since 2016
2016 Independently owned
USA Made and tested
100% Third-party tested
Why Smarter Exists

Built on formulas, not fame.

Smarter Vitamins wasn't built with celebrity endorsements, influencer hype, or trendy marketing. We built it the harder way: make thoughtful formulas, show you what's inside, and let the product earn the repeat order.

Clear labels. No proprietary blends. Ingredients chosen for a reason - not because they look good in an ad. 800,000+ orders later, we're still doing it the same way.

- The Smarter Vitamins Team

The standards behind every bottle.

U.S. Manufacturing

Produced in established U.S. facilities

Established 2016

800,000+ orders and counting

Straightforward Formulas

No proprietary blends.

cGMP Manufacturing

Produced under current Good Manufacturing Practices

Third-Party Tested

Independent laboratory testing for quality

FDA-Registered Facilities

Manufactured in FDA-registered facilities

Why Smarter Vitamin K2

Vitamin K isn't one single thing.

K1, MK-4, MK-7 - they are different forms of vitamin K. This formula uses 100 mcg of K2 specifically as all-trans MK-7.

Same Vitamin Family. Different Forms.

Vitamin K1 is known as phylloquinone and is found primarily in leafy green vegetables. Vitamin K2 refers to a family of menaquinones, including MK-4 and MK-7. This formula specifically uses MK-7.

Why MK-7?

MK-7 is a long-chain form of vitamin K2. Human research has found that it remains in circulation substantially longer than vitamin K1.

The Form Is Specified

This formula uses all-trans MK-7 rather than simply listing "vitamin K2." The exact form is disclosed so you know what you're taking.

Vitamin K Has a Job

Vitamin K is required for the activation of osteocalcin, a vitamin K-dependent protein involved in normal bone metabolism.*

An Essential Vitamin K Function

Vitamin K is required for normal blood-clotting proteins. That is also why people taking warfarin or similar vitamin K antagonist medications need professional guidance before changing their vitamin K intake.

Different Nutrients. Different Roles.

Vitamin D supports calcium absorption, while vitamin K supports vitamin K-dependent proteins involved in normal bone metabolism. They are often paired, but they do different jobs.*

Vitamin K Is Fat-Soluble

Vitamin K is a fat-soluble vitamin. Smarter K2 is delivered in a softgel that also contains avocado oil and is designed for simple daily use.

One Mini Softgel

100 mcg of all-trans MK-7 in one mini softgel per day. No multiple-capsule serving to keep track of.

100 mcg vitamin K2 as MK-7 · 50 mg kale powder · one mini softgel daily

Smarter Vitamin K2 $35.00
The research

Research & References

Selected human research on menaquinone-7 (MK-7). These studies examine MK-7 as an ingredient - not Smarter Vitamin K2 or this specific formulation.

01 Inaba N, Sato T, Yamashita T. Low-Dose Daily Intake of Vitamin K2 (Menaquinone-7) Improves Osteocalcin gamma-Carboxylation: Double-Blind, Randomized Controlled Trials. This research included a randomized, placebo-controlled study using 100 mcg of MK-7 daily for 12 weeks and examined its effect on osteocalcin carboxylation, a vitamin K-dependent process associated with bone metabolism. J Nutr Sci Vitaminol. 2015;61(6):471-480. 02 Schurgers LJ, Teunissen KJF, Hamulyak K, Knapen MHJ, Vik H, Vermeer C. Vitamin K-containing dietary supplements: comparison of synthetic vitamin K1 and natto-derived menaquinone-7. A human study comparing vitamin K1 and MK-7 found that both were absorbed, while MK-7 remained in circulation substantially longer and produced more stable serum levels during repeated intake. Blood. 2007;109(8):3279-3283.

These references are provided for educational purposes and discuss research on vitamin K or MK-7. They are not clinical studies of Smarter Vitamin K2, K2VITAL®, or this specific finished formulation.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Good to know

FAQs

Vitamin K is a family of fat-soluble compounds.

Vitamin K1, or phylloquinone, is found primarily in leafy green vegetables.

Vitamin K2 refers to several menaquinones, including MK-4 and MK-7. Smarter Vitamin K2 uses MK-7.

Both forms contribute to vitamin K-dependent functions in the body, but they differ in their chemical structure and how long they remain in circulation.

MK-7 stands for menaquinone-7, a long-chain form of vitamin K2.

Human research has found that MK-7 remains in circulation longer than vitamin K1, which is one reason MK-7 is commonly used in once-daily K2 supplements.

All-trans describes the molecular configuration of the MK-7 used in the formula.

Smarter Vitamin K2 uses K2VITAL®, a branded source of all-trans MK-7. We specify the form rather than simply putting "vitamin K2" on the label.

Vitamin K is required for the activation of several vitamin K-dependent proteins.

Its established physiological roles include normal blood clotting and normal bone metabolism.*

Each softgel provides 100 mcg of vitamin K2, equal to 83% of the current Daily Value for vitamin K.

The Daily Value applies to total vitamin K rather than specifically to K2 or MK-7.

There is no established Tolerable Upper Intake Level for vitamin K in healthy adults, but that does not mean more is automatically better - especially because vitamin K can interact significantly with certain anticoagulant medications.

That common phrase oversimplifies the biology.

Vitamin K is required to activate proteins such as osteocalcin, which is involved in bone metabolism, and matrix Gla protein, which is present in vascular tissue.

We would rather describe those established biological roles than claim that a supplement literally directs calcium around the body or prevents arterial calcification.

They are different nutrients with different roles.

Vitamin D supports calcium absorption, while vitamin K supports vitamin K-dependent proteins involved in normal bone metabolism.*

K2 is commonly paired with vitamin D3, but taking one does not automatically mean every person needs the other. Your overall diet, supplement routine, and individual needs matter.

Take one mini softgel daily, preferably with a meal, according to the Suggested Use.

Each softgel contains 100 mcg of vitamin K2 as MK-7.

Vitamin K can significantly interfere with warfarin (Coumadin) and other vitamin K antagonist medications.

If you take one of these medications, do not start, stop, or change vitamin K supplementation without guidance from the healthcare professional managing your anticoagulation.

If you take any anticoagulant or antiplatelet medication and are unsure whether vitamin K is appropriate for you, ask your healthcare professional before use.

Each mini softgel contains 50 mg of kale powder as an additional whole-food ingredient in the formula.

The clearly declared 100 mcg dose of vitamin K2 comes from the MK-7 ingredient. We do not rely on the kale powder to provide the stated K2 amount.

No.

The softgel shell contains bovine gelatin, so Smarter Vitamin K2 is not vegetarian or vegan.

Each bottle contains 60 mini softgels and 60 servings.

At one softgel per day, one bottle lasts approximately two months.

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