10 Best Third Party Tested Vitamin D3 K2 of 2025

Tested and Reviewed: Top 10 Third Party Tested Vitamin D3 K2 deals with expert ratings from 8.1 to a perfect 10

May 2026 Edition

Editor's Choice

9.7

Sports Research

Sports Research® Vitamin D3 + K2 w/ Coconut Oil - Vegan Vitamin D 5000iu & Mk7 Vitamin K 100mcg for Bone & Immune Support - Vegan Certified · Non-GMO · Soy Free - 60 Softgels

Editor's bottom line:

“This third party tested vitamin d3 k2 is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

D3 + K2 TEAMWORK THAT MATTERS: Vitamins D3 and K2 work synergistically to support strong bones, immune health, and proper calcium metabolism.* D3 helps your body absorb calcium, while K2 (as MK-7) guides it to the bones where it belongs.* Together, they form a powerful combo for total-body wellness.*
PLANT-BASED, VEGAN-FRIENDLY FORMULA: Our D3 + K2 supplement uses vegan D3 (cholecalciferol) sourced from lichen and K2 (MK-7) derived from fermented chickpeas, with coconut MCT oil added to support optimal nutrient absorption.* No animal ingredients, everjust effective, science-backed support.*
ONCE-A-DAY IMMUNE & BONE SUPPORT: Each easy-to-swallow softgel delivers 125 mcg (5000 IU) of vegan D3 and 100 mcg of K2 (MK-7)the most bioavailable form of K2. Just one softgel per day helps promote bone health, immune support, and cardiovascular health in both women and men.*
CERTIFIED CLEAN & QUALITY TESTED: Our vitamin D3 and K2 formula is Vegan Certified, Non-GMO Project Verified, and free of carrageenan, gluten, soy, and artificial fillers. Each batch is 3rd-party tested and manufactured in the USA in a cGMP-compliant facilitybecause your health deserves the highest standard.
NUTRITION YOU CAN TRUST: At Sports Research, we craft supplements with ingredients you recognize and results you can feel. Our D3 + K2 softgels deliver plant-based purity, clinical strength, and real transparency, helping you live brighter every daynaturally.*

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Picked by 397 people today

9.5

Nutricost

Nutricost Vitamin D3 + K2 (5000 IU D3 / 100mcg MK7), 120 Softgels – Gluten-Free & Non-GMO

Main Highlights

120 Servings of Vitamin K2 + D3 in Every Bottle
100 MCG of Vitamin K2 (MK7) in Every Serving
5000 IU of Vitamin D3 in Every Serving
Non-GMO and Gluten Free
Made in a GMP Compliant, FDA Registered Facility

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9.5

Dr. Berg Nutritionals

Dr. Berg Maximum Strength 2-in-1 Vitamin D3 K2 5,000 IU | Naturally Derived D3 | 4X Lab-Tested & Verified | High Absorption Formula | K2 D3 Vitamin Supplement - 60 Capsules

Main Highlights

Our vitamin K2 and D3 with magnesium supplement is made up of 5000 IU of vitamin D3 and 50 mcg of vitamin K2. It also includes a unique blend of vitamin B6, zinc, magnesium, MCT oil, and ox bile you won't find in other formulas Includes a 60-day supply.
Our D3 + K2 vitamin supplement goes beyond the typical combo. Formulated with vitamin D3 with MK7 vitamin K2, it includes essential cofactors like magnesium, B6, and zinc to help your body absorb, activate, and properly use vitamin D. Its not just what you takeits what your body can use.
- Our powerful K2 D3 vitamin supplement contains fat-soluble vitamins that require dietary fat for proper absorption. MCT powder, a healthy fat source, enhances the bioavailability of vitamin D with K2, allowing your body to absorb and utilize these essential nutrients more efficiently.
Our vitamin D3 + K2 is thoughtfully developed in the United States and made in cGMP-certified facilities under strict quality standards. Crafted with care in every D3 K2 vitamin 5000 IU batch to ensure purity, potency, and consistency you can trust.
- If you are unhappy with this product, reach out to us within 30 days of your purchase date and we will take care of you.

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9.2

DORADO NUTRITION

Vitamin D3 K2 Supplement (180 Softgels) Vitamin D3 K2 5000iu/100mcg - Supplement with D & K - Support Bone and Immune Health for Adult - Vegan, NON GMO, Third Party Tested - Made in USA -180 Count

Main Highlights

K2 D3 Vitamin Supplement: Our Vitamin D3 5000 IU + K2 100 mcg softgels deliver a powerful, highly absorbable blend designed to support strong bones, immune health, and overall wellnessideal for daily use by adults.
PREMIUM D3 K2 FORMULA: Vitamin D3 and K2 work together to help the body properly absorb calcium and direct it to the bones where it's needed most, promoting optimal bone strength and cardiovascular support.
HIGH POTENCY & GREAT VALUE: Each bottle contains 180 softgels, offering a long-lasting 6-month supply of maximum-strength D3 + K2, giving you exceptional potency and value in every serving.
Manufactured in the USA from Globally Sourced Ingredients - Dorado Nutrition is proudly a 100% American owned company creating jobs & better futures for all our employees & stakeholders. All of our supplements are manufactured in the USA! Our Vitamin D3 K2 Supplement softgels are made in the USA and safety tested for heavy metal and microbes in a state of the art facility.
MANUFACTURED IN A GMP CERTIFIED FACILITY - Our Vitamin D3 K2 Supplement softgels are GMP compliant to ensure premium quality. Our supplements are always free from unnecessary additives or preservatives and are third-party independently tested.

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9.0

Pure Encapsulations

Pure Encapsulations Vitamin D3 & K2 - Bone & Vascular Health Support - Immune Function Support* - Gluten Free - Non-GMO - 120 Capsules

Main Highlights

Supports Bone Strength: Pure Encapsulations Vitamin D3 & K2 helps maintain strong bones by aiding healthy calcium absorption and utilization*
Vascular Health Support: Vitamin K2 works with D3 to support arterial flexibility and healthy calcium distribution in blood vessels*
Immune Function Support: Delivers 4,000 IU of vitamin D3 to help support the immune system and seasonal wellness*
Pure Quality: Made with premium ingredients sourced from trusted suppliers, our Vitamin D3 & K2 capsules are carefully manufactured and tested for purity and potency
Pure Difference: What we leave out matters, too; Pure Encapsulations products are free from common allergens, artificial or unnecessary ingredients, and GMOs

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8.8

Triquetra Health

Organic Plant D3 + K2 | 5000 iu D3 + 120 mcg K2 as All-Trans MK7 from MenaQ7® - 100% Whole Food, Raw & Vegan | Enhanced Digestion with Prebiotic & Superfood Complex – D3 from Organic Algae (60 Count)

Main Highlights

ORGANIC, WHOLE FOOD & PLANT-BASED D3 & K2 (MK7): Plant-D3 is Organic Vitamin D3 derived from sun-grown algae delivered in the optimal Cholecalciferol form. Our K2 is in MK7 is the superior all-Trans form.
MAX STRENGTH, 5000 iu D3 & 120 mcg of K2: Each serving provides maximum strength, clinically validated doses.
ENHANCED WITH PREBIOTIC SUPERFOOD COMPLEX:: Plant-D3 is optimized with a superfood complex that includes digestion enhancing prebiotics.
VITAMIN K2 AS ALL-TRANS MK7 from MenaQ7 - 94% MORE EFFECTIVE: All-Trans K2 is the 100% BioActive form of K2 that activates K2-dependent enzymes and proteins. A majority of K2 in the market is a blend of "cis" form MK7, which is biologically inactive and cannot easily be absorbed. A majority of K2 on the market is less than 6% Trans MK7.
USDA ORGANIC CERTIFIED, 3RD PARTY TESTED: Plant-D3 is organically certified by the USDA and exceeds all vegan standards. It is GMO-free, soy-free, gluten-free, preservative-free, additive-free. It is produced in a cGMP & organic certified facility in the USA and is 3rd party tested for over 100+ toxins or microbial.

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8.6

Bronson

Bronson Vitamin K2 (MK7) with D3 Supplement Non-GMO Formula 5000 IU Vitamin D3 & 90 mcg K2 MK-7 Easy to Swallow D & K Complex, 120 Capsules

Main Highlights

The perfect pair: Vitamins K2 & D3 were simply meant to be together. Most people know the benefits of Vitamin D, but many dont realize that Vitamin D needs Vitamin K2 to maximize its benefits.
Strong bones: Vitamin K2D3 not only promotes the proper absorption of calcium with D3, but the correct distribution to your bones where you need it most.
Superior quality capsules: Laboratory tested, non-GMO, gluten free, & soy free. All Bronson products are tested in our state-of-the-art facility in New York.
Trusted Since 1960: The pioneers of Bronson Vitamins were a group of pharmacists who witnessed the benefits of vitamins and mineral supplementation firsthand with their patients. Bronson Vitamins have been consistently mentioned by top medical professionals since our inception in 1960.

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8.3

Save 20%

Micro Ingredients

Micro Ingredients Vitamin D3 5,000 IU + K2 MK-7 100 mcg, 300 Softgels | 2-in-1 Vitamins D & K Complex | Extra Strength, Easy to Swallow, Non-GMO, Gluten Free

20% Off

Main Highlights

Micro Ingredients Vitamin D3 Plus MK7 Vitamin K2 (Vitamin D3 K2), 300 Softgels, No GMOs and Easy to Swallow.
Each pouch includes 300 mini softgels, delivering a potent one a day complex with 5,000 IU of vitamin D3 and 100 mcg of vitamin K2 per serving to provide natural sunshine vitamin synergy.
Vitamin D3 and K2 are essential micronutrients for adults, offered in high quality, stable forms that pair together for closely related and comprehensive benefits.
No GMOs, No Dairy, No Preservatives, No Artificial Colors, No Flavors, No Soy, No Tree Nuts, and No Gluten. 3rd Party Lab Tested for Purity and Safety.
Directions: It's normal for softgels to stick together and clump during warm weather conditions. This does NOT affect the quality or efficacy of the product. To release the clumps, give your bottle a good shake or knock it against the counter.

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8.1

Pure Encapsulations

Pure Encapsulations Vitamin D3 & K2 - Bone & Vascular Health Support - Immune Function Support* - Gluten Free - Non-GMO - 60 Capsules

Main Highlights

Supports Bone Strength: Pure Encapsulations Vitamin D3 & K2 helps maintain strong bones by aiding healthy calcium absorption and utilization*
Vascular Health Support: Vitamin K2 works with D3 to support arterial flexibility and healthy calcium distribution in blood vessels*
Immune Function Support: Delivers 4,000 IU of vitamin D3 to help support the immune system and seasonal wellness*
Pure Quality: Made with premium ingredients sourced from trusted suppliers, our Vitamin D3 & K2 capsules are carefully manufactured and tested for purity and potency
Pure Difference: What we leave out matters, too; Pure Encapsulations products are free from common allergens, artificial or unnecessary ingredients, and GMOs

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Best Value

8.1

Save 40%

NOW Foods

NOW Supplements, Vitamin D-3 & K-2, 1,000 IU/45 mcg,Plus Cardiovascular Support, Supports Bone Health, 120 veg Capsules

40% Off

Main Highlights

SUPPORTS BONE HEALTH*/PLUS CARDIOVASCULAR SUPPORT*: NOW Vitamin D3 & K2 capsules combine two nutrients extensively researched for their contribution to the health of bones, teeth, and the cardiovascular system*
1,000 IU/45 mcg: Recent studies indicate that Vitamin D3 has an important function within the immune system.* Vitamin K is critical for the formation of a healthy, strong bone matrix*
CERTIFICATIONS/CLASSIFICATIONS: Non-GMO, Kosher, Soy Free
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 formulation.
Founded in 1968 by Elwood Richard, NOW is one of the largest independent, family- and employee-owned manufacturers of natural products

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Our Best Overall Choice

Best Choice

9.7

Sports Research

Sports Research® Vitamin D3 + K2 w/ Coconut Oil - Vegan Vitamin D 5000iu & Mk7 Vitamin K 100mcg for Bone & Immune Support - Vegan Certified · Non-GMO · Soy Free - 60 Softgels

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

D3 + K2 TEAMWORK THAT MATTERS: Vitamins D3 and K2 work synergistically to support strong bones, immune health, and proper calcium metabolism.* D3 helps your body absorb calcium, while K2 (as MK-7) guides it to the bones where it belongs.* Together, they form a powerful combo for total-body wellness.*
PLANT-BASED, VEGAN-FRIENDLY FORMULA: Our D3 + K2 supplement uses vegan D3 (cholecalciferol) sourced from lichen and K2 (MK-7) derived from fermented chickpeas, with coconut MCT oil added to support optimal nutrient absorption.* No animal ingredients, everjust effective, science-backed support.*
ONCE-A-DAY IMMUNE & BONE SUPPORT: Each easy-to-swallow softgel delivers 125 mcg (5000 IU) of vegan D3 and 100 mcg of K2 (MK-7)the most bioavailable form of K2. Just one softgel per day helps promote bone health, immune support, and cardiovascular health in both women and men.*
CERTIFIED CLEAN & QUALITY TESTED: Our vitamin D3 and K2 formula is Vegan Certified, Non-GMO Project Verified, and free of carrageenan, gluten, soy, and artificial fillers. Each batch is 3rd-party tested and manufactured in the USA in a cGMP-compliant facilitybecause your health deserves the highest standard.
NUTRITION YOU CAN TRUST: At Sports Research, we craft supplements with ingredients you recognize and results you can feel. Our D3 + K2 softgels deliver plant-based purity, clinical strength, and real transparency, helping you live brighter every daynaturally.*

Show Price

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10 Best Third Party Tested Vitamin D3 K2 of 2025

Tested and Reviewed: Top 10 Third Party Tested Vitamin D3 K2 deals with expert ratings from 8.1 to a perfect 10

Sports Research

Sports Research® Vitamin D3 + K2 w/ Coconut Oil - Vegan Vitamin D 5000iu & Mk7 Vitamin K 100mcg for Bone & Immune Support - Vegan Certified · Non-GMO · Soy Free - 60 Softgels

Editor's bottom line:

Main Highlights

Nutricost

Nutricost Vitamin D3 + K2 (5000 IU D3 / 100mcg MK7), 120 Softgels – Gluten-Free & Non-GMO

Main Highlights

Dr. Berg Nutritionals

Dr. Berg Maximum Strength 2-in-1 Vitamin D3 K2 5,000 IU | Naturally Derived D3 | 4X Lab-Tested & Verified | High Absorption Formula | K2 D3 Vitamin Supplement - 60 Capsules

Main Highlights

DORADO NUTRITION

Vitamin D3 K2 Supplement (180 Softgels) Vitamin D3 K2 5000iu/100mcg - Supplement with D & K - Support Bone and Immune Health for Adult - Vegan, NON GMO, Third Party Tested - Made in USA -180 Count

Main Highlights

Pure Encapsulations

Pure Encapsulations Vitamin D3 & K2 - Bone & Vascular Health Support - Immune Function Support* - Gluten Free - Non-GMO - 120 Capsules

Main Highlights

Triquetra Health

Organic Plant D3 + K2 | 5000 iu D3 + 120 mcg K2 as All-Trans MK7 from MenaQ7® - 100% Whole Food, Raw & Vegan | Enhanced Digestion with Prebiotic & Superfood Complex – D3 from Organic Algae (60 Count)

Main Highlights

Bronson

Bronson Vitamin K2 (MK7) with D3 Supplement Non-GMO Formula 5000 IU Vitamin D3 & 90 mcg K2 MK-7 Easy to Swallow D & K Complex, 120 Capsules

Main Highlights

Micro Ingredients

Micro Ingredients Vitamin D3 5,000 IU + K2 MK-7 100 mcg, 300 Softgels | 2-in-1 Vitamins D & K Complex | Extra Strength, Easy to Swallow, Non-GMO, Gluten Free

Main Highlights

Pure Encapsulations

Pure Encapsulations Vitamin D3 & K2 - Bone & Vascular Health Support - Immune Function Support* - Gluten Free - Non-GMO - 60 Capsules

Main Highlights

NOW Foods

NOW Supplements, Vitamin D-3 & K-2, 1,000 IU/45 mcg,Plus Cardiovascular Support*, Supports Bone Health*, 120 veg Capsules

Main Highlights

Our Best Overall Choice

Sports Research

Sports Research® Vitamin D3 + K2 w/ Coconut Oil - Vegan Vitamin D 5000iu & Mk7 Vitamin K 100mcg for Bone & Immune Support - Vegan Certified · Non-GMO · Soy Free - 60 Softgels

Editor's bottom line:

Main Highlights

Deals are Live

NOW Supplements, Vitamin D-3 & K-2, 1,000 IU/45 mcg,Plus Cardiovascular Support, Supports Bone Health, 120 veg Capsules