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

March 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

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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 K2 (MK7) (100mcg) + Vitamin D3 (5000 IU) 120 Softgels - Gluten Free and Non-GMO

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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

Micro Ingredients

Micro Ingredients Vitamin D3 10,000 IU + K2 MK-7 200 mcg, 300 Softgels with Virgin Coconut Oil | 2-in-1 Vitamins D & K Complex | Extra Strength, Easy to Swallow, Non-GMO, Gluten Free

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Main Highlights

Micro Ingredients offers double-strength vitamin D3 + K2 softgels. An efficiently absorbed 2-in-1 formula featuring D3 as cholecalciferol and K2 in its top-grade menaquinone-7 (MK-7) form.
Each pouch includes 300 mini softgels infused with coconut oil, delivering a potent one a day complex with 10,000 IU of vitamin D3 and 200 mcg of vitamin K2 per serving to provide natural sunshine vitamin synergy.
Fat soluble vitamins like D and K are absorbed more effectively when a fat source is present. The addition of MCT coconut oil provides a clean, natural carrier for optimal nutrient delivery.
Vitamin D3 and K2 are essential micronutrients for adults, offered in high quality, stable forms that pair together for closely related and comprehensive benefits.
Premium non-GMO vitamin D3 + K2 supplements. Made without soy, dairy, and gluten. Ingredients must pass a 3rd party lab test to ensure our product is safe, pure, and potent.

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9.2

Sports Research

Sports Research® Vitamin D3 + K2 w/Coconut Oil - Vegan Vitamin D 5000iu (125mcg) & Mk7 Vitamin K 100mcg for Bone & Immune Support - Vegan Certified · Non-GMO · Soy Free - 30 Softgels

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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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9.0

Dr. Berg Nutritionals

Dr. Berg Vitamin D3 & K2 5,000 IU + MK-7 – 60 Capsules – Immune, Bone & Heart Support* Supplement w/Magnesium, Zinc, B6 – 4X Lab-Tested – No Fillers – Non-GMO, cGMP, Formulated in USA

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Main Highlights

, & : A Potent blend of vitamin D3 (5,000 IU), K2, magnesium, and zinc to help support immunity, strong bones, and cardiovascular wellness*without junk fillers.
, : 7-in-1 science-backed formulano maltodextrin, starch, gluten, or unnecessary additives. Only clean, tested ingredients for daily confidence.
, 60 : Get full support in a single daily capsuleno complicated routines, easy, reliable nutrition every day.
- & : Each batch undergoes four layers of lab verification, including third-party testing for heavy metalsso you know exactly what youre getting.
. , : Developed by a trusted health educator and backed by decades of experience and thousands of educational videos worldwideeducation, not hype.

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8.8

Pure Encapsulations

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

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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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8.6

Dr. Berg Nutritionals

Dr. Berg Vitamin D3 & K2 10,000 IU + MK-7 – 120 Capsules – Immune, Bone & Heart Support* Supplement w/Magnesium, Zinc, B6 – 4X Lab-Tested – No Fillers – Non-GMO, cGMP, Formulated in USA

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Main Highlights

, & : Potent blend of vitamin D3 (10,000 IU), K2, magnesium, and zinc to help support immunity, strong bones, and cardiovascular wellness*without junk fillers.
, : 7-in-1 science-backed formulano maltodextrin, starch, gluten, or unnecessary additives. Only clean, tested ingredients for daily confidence.
, : Get full support in a single daily capsuleno complicated routines, easy, reliable nutrition every day.
- & : Each batch undergoes four layers of lab verification, including third-party testing for heavy metalsso you know exactly what youre getting.
. , : Developed by a trusted health educator and backed by decades of experience and thousands of educational videos worldwideeducation, not hype.

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8.3

Bronson

Bronson Vitamin K2 D3 (MK7) Supplement Non-GMO Formula Vitamin D3 5000IU (125 mcg) & 90 mcg K2 MK-7, Easy to Swallow D & K Complex, 60 Capsules

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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: This formula 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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8.1

Pure Encapsulations

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

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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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8.1

NOW Foods

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

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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.
Packaged in the USA by a family owned and operated company since 1968

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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

Free Shipping

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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Special Amazon deal ends in:

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 K2 (MK7) (100mcg) + Vitamin D3 (5000 IU) 120 Softgels - Gluten Free and Non-GMO

Main Highlights

Micro Ingredients

Micro Ingredients Vitamin D3 10,000 IU + K2 MK-7 200 mcg, 300 Softgels with Virgin Coconut Oil | 2-in-1 Vitamins D & K Complex | Extra Strength, Easy to Swallow, Non-GMO, Gluten Free

Main Highlights

Sports Research

Sports Research® Vitamin D3 + K2 w/Coconut Oil - Vegan Vitamin D 5000iu (125mcg) & Mk7 Vitamin K 100mcg for Bone & Immune Support - Vegan Certified · Non-GMO · Soy Free - 30 Softgels

Main Highlights

Dr. Berg Nutritionals

Dr. Berg Vitamin D3 & K2 5,000 IU + MK-7 – 60 Capsules – Immune, Bone & Heart Support* Supplement w/Magnesium, Zinc, B6 – 4X Lab-Tested – No Fillers – Non-GMO, cGMP, Formulated in USA

Main Highlights

Pure Encapsulations

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

Main Highlights

Dr. Berg Nutritionals

Dr. Berg Vitamin D3 & K2 10,000 IU + MK-7 – 120 Capsules – Immune, Bone & Heart Support* Supplement w/Magnesium, Zinc, B6 – 4X Lab-Tested – No Fillers – Non-GMO, cGMP, Formulated in USA

Main Highlights

Bronson

Bronson Vitamin K2 D3 (MK7) Supplement Non-GMO Formula Vitamin D3 5000IU (125 mcg) & 90 mcg K2 MK-7, Easy to Swallow D & K Complex, 60 Capsules

Main Highlights

Pure Encapsulations

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