Vitamins & Supplements

The Best Vitamin K2 Supplements

This post contains affiliate links. As an Amazon Associate we earn from qualifying purchases.

Our picks are based on Amazon bestseller rankings, Amazon customer ratings, and product availability. We update our recommendations regularly to ensure accuracy.

Vitamin K2 plays a crucial role in calcium metabolism, directing calcium to bones and teeth while preventing its buildup in arteries. With various forms and dosages available, selecting the right supplement can be complex. This guide helps you navigate the options to find a K2 supplement that best suits your health needs.

SaleNo. 1
Nature Made Vitamin K2 100 mcg, Healthy Bone Supplements, 30 Softgels, 30 Day Supply
  • Bone support supplement: contains one 30 count bottle of Nature Made Vitamin K2 100 mcg Softgels for a 30-day supply
  • Nature Made Vit K2 softgels help support healthy bones
  • This Vitamin K2 MK-7 form supplement also works with the calcium in your body to support healthy bones
  • Nature Made K2 Vitamin supplement; Adults, take one Vitamin K2 softgel daily with water and a meal
SaleNo. 2
Nutricost Vitamin K2 MK-7 100 mcg, 240 Softgels, Gluten Free, GMO-Free
  • Vitamin K2 MK-7 (Menaquinone-7) is the only active ingredient
  • 240 Servings of Vitamin K in Every Bottle
  • Softgels, GMO-Free, and Gluten Free
  • 100mcg of Vitamin K2 in every serving - 1 Serving: Just 1 Softgel
SaleNo. 3
NOW Supplements, Vitamin K-2 100 mcg, Menaquinone-4 (MK-4), 100 Veg Caps
  • BIOLOGICALLY ACTIVE FORM*/MENAQUINONE-4: As a biologically active form of vitamin K, K-2 is important for the formation of healthy, strong bone matrix*
  • SUPPORTS BONE HEALTH AND PROPER CALCIUM METABOLISM*: Vitamin K's role in arterial health revolves around its ability to support proper calcium metabolism in vascular structures*
  • CERTIFICATIONS/CLASSIFICATIONS: Halal, Dairy Free, Egg Free, Kosher, Made in Peanut-Free Facility, Made without Gluten, Non-GMO, Nut Free, Soy free, Vegan/Vegetarian
  • GMP Quality Assured: A-rated, third-party certification means that every aspect of the NOW manufacturing process has been examined. Our in-house laboratories are ISO/IEC accredited for laboratory testing including for stability, potency and product...
SaleNo. 4
Carlyle Vitamin K2 Supplement 100 mcg | K2 MK-4 | 240 Capsules
  • VITAMIN K: An important nutrient that the body cannot produce on it's own
  • PREMIUM FORMULA: Quick release capsules provide 100 mcg of Vitamin K-2 (as MK-4) for daily support
  • ROOTED IN WELLNESS: Carlyle provides premium, honest supplements in your pursuit to healthy living
  • CARLYLE MANUFACTURERS: Laboratory Tested, Trusted Ingredients, Superior Quality, 100% Guaranteed!
SaleNo. 5
Sports Research® Vitamin K2 as MK-7 100mcg, 60 Count Plantgels™
  • STRONG SUPPORT FOR A STRONGER YOU: Vitamin K2 is one of the biggest supporters of bone health. This micronutrient is essential in moving calcium out of your bloodstream and into your bones, helping you build bone density.*
  • ONE-A-DAY FORMULA: Just one easy-to-swallow veggie softgel provides 100mcg of Vitamin K2 as MK7 - the superior form of K2 with the highest bioavailability. Menaquinone (MK7) has the potential to remain in the bloodstream longer than MK4 and demonstrates...
  • PLANT BASED INGREDIENTS: Instead of sourcing our Vitamin K2 from soy like other brands, we source our K2 from only fermented chickpeas and encapsulate it in our trademark, carrageenan-free Plantgel capsule. NOTE: Our K2 softgels now contain a...
  • COCONUT MCT OIL: K2 delivers the best benefits when taken with food or another source of fat, which is why we add the quality fats found in coconut MCT oil to our vegan softgels to help ensure you get the most from your K2 supplement.*
No. 6
Micro Ingredients Vitamin K2 MK-7 200 mcg Per Serving, 300 Coconut Oil Softgels | K2 Vitamin Supplement with...
  • Micro Ingredients Vitamin K2 provides 200 mcg per serving in the MK-7 (menaquinone-7) form, a commonly used form of vitamin K2 in supplement routines.
  • Formulated with coconut oil in a softgel format, this fat-soluble vitamin is presented in a simple, oil-based delivery designed for everyday use.
  • Each pouch includes 300 softgels, providing a long-lasting supply with a convenient one-softgel daily serving. A streamlined option that fits easily into consistent daily habits.
  • A straightforward Vitamin K2 supplement made for those who prefer a focused, single-nutrient approach. Built around form, format, and consistency for a clean addition to your routine.
No. 7
InnovixLabs Full Spectrum Vitamin K2 MK7 + MK4, 600 mcg (90 Softgels)
  • Full Spectrum K2 Supplement with both essential forms of K2 MK4 and MK7 in a balanced ratio designed to promote healthy bones arteries and brain function by supporting calcium transport into bones instead of soft tissues
  • Easily Absorbed with bioactive TRANS forms of vitamin K2 MK7 and MK4 that are easily absorbed by your body for maximum benefits
  • Powerful Vitamin MK4 supports normal cognitive health with MK4 vitamin K2 an essential nutrient naturally found in the brain fetus and breast milk known to support brain function and a developing fetus
  • Third-Party Tested with all batches of our K2 vitamins undergoing rigorous third-party testing for purity potency and freshness and encapsulated tested and bottled in a cGMP certified facility in California for quality and reliability
SaleNo. 8
NOW Supplements, MK-7 Vitamin K-2 100 mcg, 120 Veg Caps
  • SUPPORTS BONE HEALTH*/VEGAN CAPSULES: Vitamin K is well known for its role in the synthesis of a number of blood coagulation factors and is also important for the formation of strong, healthy bones*
  • TRADEMARKED INGREDIENT/CARDIOVASCULAR SUPPORT*: MenaQ7 MK-7 is a unique soy-free, bioavailable form of vitamin K-2 that plays a critical role in arterial health through its ability to support proper calcium metabolism in blood vessels and arteries*
  • CERTIFICATIONS/CLASSIFICATIONS: Made without Gluten, Dairy Free, Egg Free, Non-GMO, Kosher, Nut Free, Vegan/Vegetarian
  • GMP Quality Assured: A-rated, third-party certification means that every aspect of the NOW manufacturing process has been examined. Our in-house laboratories are ISO/IEC accredited for laboratory testing including for stability, potency and product...
SaleNo. 9
Nutricost Vitamin K2 (MK4) 240 Capsules (100mcg) - Gluten Free and Non-GMO
  • Vitamin K2 as Menatetrenone MK-4 is the only active ingredient
  • 240 Servings in Every Bottle
  • Non-GMO and Gluten Free
  • 100mcg of Vitamin K2 in every serving - 1 Serving: Just 1 Capsule
No. 10
DEAL SUPPLEMENT Vitamin K2 MK-7 200mcg Per Serving, 240 Coconut Oil Softgels | Easily Absorbed Menaquinone...
  • Advanced vitamin K2 softgels, efficiently absorbed with a healthy virgin coconut oil liquid base, provides a more complete absorbing essential micronutrient that is made from the longer-lasting biologically active MK-7 form.
  • High bioavailable coconut oil softgels with stable vitamin K2 as Menaquinone-7. Combining the fat-soluble vitamin K2 with pure coconut oil maximizes nutrient utilization.
  • May promote greater benefits for bone strength, bone density, heart health, and calcium processing in men and women.

Last update on 2026-10-15 / Affiliate links / Images from Amazon Product Advertising API

How to Choose the Best Vitamin K2 Supplements

Understanding Vitamin K2 Forms

Vitamin K2 exists in several forms, primarily MK-4 and MK-7. MK-7 is generally considered more potent and longer-lasting in the body, making it a popular choice for supplements. Look for supplements that specify the form of K2 they contain.

Dosage Considerations

Recommended daily intake for Vitamin K2 can vary. Many supplements offer dosages ranging from 45 mcg to 180 mcg. It's advisable to start with a lower dose and consult with a healthcare professional to determine the appropriate amount for your individual needs, especially if you have any pre-existing conditions or are taking other medications.

Synergy with Vitamin D3

Vitamin K2 works synergistically with Vitamin D3 to support bone health and cardiovascular function. Vitamin D helps the body absorb calcium, while K2 helps ensure that calcium is utilized correctly. Many effective K2 supplements are formulated with D3, offering a combined benefit.

Third-Party Testing and Purity

When choosing any supplement, opt for brands that undergo third-party testing. This certification ensures that the product contains what it claims to contain and is free from contaminants. Look for seals from reputable organizations on the product label or manufacturer's website.

Absorption and Bioavailability

The absorption of Vitamin K2 can be enhanced when taken with a meal containing healthy fats. Some supplements also include ingredients designed to improve bioavailability. Consider the overall formulation and how it might impact your body's ability to utilize the nutrient.

Frequently Asked Questions

What is the difference between Vitamin K1 and K2?
Vitamin K1 is primarily found in leafy green vegetables and is essential for blood clotting. Vitamin K2, found in fermented foods and animal products, plays a more significant role in bone and cardiovascular health by directing calcium metabolism.
Can I take Vitamin K2 with blood thinners?
Individuals taking blood-thinning medications, such as warfarin, should consult their doctor before taking Vitamin K2. Vitamin K can interfere with the effectiveness of these medications, and dosage adjustments may be necessary.
How long does it take to see benefits from Vitamin K2?
The timeline for experiencing benefits can vary depending on individual health status and the dosage taken. Some users report noticing improvements in bone density markers over several months to a year, while others may experience benefits related to cardiovascular health sooner.
What are the signs of Vitamin K2 deficiency?
Symptoms of Vitamin K2 deficiency are not always obvious but can include increased risk of fractures, arterial calcification, and potentially gum bleeding. However, true deficiencies are relatively rare in healthy adults with a balanced diet.
Is MK-4 or MK-7 form of K2 better?
Both MK-4 and MK-7 are effective forms of Vitamin K2. MK-7 is derived from natto and has a longer half-life, meaning it stays in the body longer and may offer more consistent benefits. MK-4 is found in animal products and is absorbed more quickly.
Should I take Vitamin K2 on an empty stomach?
Vitamin K2 is fat-soluble, meaning it is best absorbed when taken with a meal that contains some dietary fat. Taking it on an empty stomach may reduce its bioavailability and effectiveness.

How we compare Vitamins & Supplements

1 Specifications: we compare the key features and specifications listed by the manufacturer and on Amazon.
2 Customer ratings: we take into account the average Amazon rating and the number of reviews.
3 Price: we check the current price and highlight notable deals.
4 Updates: comparisons are refreshed regularly as prices and availability change.

Our comparisons are reviewed and updated regularly to reflect the latest products and prices.

Was this article helpful?

Thanks for your feedback!

Thanks — we'll work to improve this article.