10 Best Vitamin D3 K2 Nsf And Usp Certified of 2025

Tested and Reviewed: Top 10 Vitamin D3 K2 Nsf And Usp Certified deals with expert ratings from 8.1 to a perfect 10

September 2025 Edition

Editor's Choice

9.7

Save 19%

Nature Made

Nature Made Vitamin D3 K2, 5000 IU (125 mcg) Vitamin D, Dietary Supplement for Bone, Teeth, Muscle and Immune Health Support, 30 Softgels, 30 Day Supply

19% OffFree Shipping

Editor's bottom line:

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

Main Highlights

Strong bone support supplement: contains one 30 count bottle of Nature Made Vitamin D3 K2 Softgels for a 30-day supply
Nature Made Vitamin D3 and K2 softgels provide 5000 IU (125 mcg) of Vitamin D for immune support and to support healthy aging, bone health, teeth health and muscle health
Provides 100 mcg of Vitamin K2 to support healthy artery function; Adding K2 to D3 helps direct calcium to bones
Adults, take one of these D3 and K2 softgels daily with water; Designed for those with higher Vitamin D needs and/or deficiency, as determined by a healthcare professional(1)
Made in the USA with quality global ingredients, these gluten free Vitamin K2 D3 softgels contain no synthetic dyes and no artificial flavors
#1 Pharmacist Recommended Vitamin & Supplement Brand*
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

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Picked by 281 people today

9.5

Save 45%

NOW Foods

NOW Foods Supplements, Mega D-3 & MK-7 with Vitamins D-3 & K-2, 5,000 IU/180 mcg, Bone & Cardiovascular Support*, 60 Veg Capsules

45% OffFree Shipping

Main Highlights

BONE AND CARDIOVASCULAR SUPPORT*: Combines vitamins D-3 and K-2, two nutrients extensively researched for their roles in the health of bones, teeth and the cardiovascular system*
VITAMINS D-3: Vitamin D-3 works with calcium to support bone health, and more recent studies indicate its important for immune system health as well*
VITAMIN K-2: 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*
GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation)
Packaged in the USA by a family owned and operated company since 1968

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9.5

Dr. Berg Nutritionals

Dr. Berg Vitamin D3 K2 w/MCT Powder - Includes 10,000 IU of Vitamin D3, 100 mcg MK7 Vitamin K2, Purified Bile Salts, Zinc & Magnesium for Ultimate Absorption - K2 D3 Vitamin Supplement - 120 Capsule

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Main Highlights

- This Vitamin D3 K2 supplement is loaded with 10,000 IUs of Vitamin D3 (that's 2x more than most brands with only 5,000 IUs) and 100 mcg of Vitamin K2. It also includes a unique blend of Vitamin B6, Zinc, Magnesium, MCT and OxBile you won't find in other brands - Includes a 120 day supply
- Our state-of-the-art manufacturing facilities are located in the US and are staffed with highly trained individuals who formulate superior products. Being certified under US laws and regulations (GMP Certified), these facilities are uncompromising when it comes to cleanliness and quality control.
- We're sorry to say it, but if youre looking for cheap, youre in the wrong place. We search far and wide, domestic and international, to provide high-quality ingredients for which your body will thank you. Unfortunately, getting the best ingredients from domestic and international farms can come at a higher-than-normal cost. If quality, satisfaction, and results are essential to you, youre in the right place!
- Also known as The Knowledge Doc, Dr. Berg has spent most of his life researching and providing natural solutions to everyday health problems. This extensive research and thousands of hours working with patients are what sets us apart from other brands, as it has allowed us to create proprietary blends you cant get anywhere else.
- - If for any reason you're not happy with the results you experience within the first 30 days, we're happy to give you a full refund! Send us a message, and the refund will be processed as long as it's requested within 30 days of purchase.

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9.2

Save 34%

Nature's Bounty

Nature's Bounty Vitamin D3 K2 Supplement, 4000 IU Vitamin D3 Plus 100 mcg of Vitamin K for Heart & Bone Health Support, 30 Day Supply, 30 Vegetarian Capsules, K2 + D3 Supplements for Adults

34% OffFree Shipping

Main Highlights

IMMUNE SUPPORT STRONG HEALTHY BONES (1) Our Vitamin D2 and K2 supplement (30-count) helps support the immune system (1)
SUPPORT STRONG HEALTHY BONES With Vitamin D3, a essential nutrient for bone strength,; and Vitamin K2; that supports the function of Vitamin D3 by activating calcium absorption for strong bones (1)
YEAR-ROUND IMMUNE SUPPORT (1) Our Vitamin K2 + D3 capsules provide the same form of Vitamin D naturally produced by your body through sun exposure; providing immune support throughout the year (1)
QUALITY IS OUR PRIORITY Natures Bountys Vitamin D3 + K2 supplement is non-GMO; gluten-free; sugar-free; and free of artificial colors and sweeteners
FROM THE TRUSTED WELLNESS EXPERTS: Natures Bounty K2 + D3 is a product of 50 years of dedication to quality and scientific research to make vitamins and nutritional supplements you can trust

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9.0

Bronson

Bronson Vitamin D3 5000iu (125mcg) 1 Year Supply for Healthy Muscle Function and Immune Support, Non-GMO, 360 Tablets

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Main Highlights

High Quality & Great Value: Bronson Basics Vitamin D3 provides 5,000 IU of D3 per tablet in a 1 year supply bottle. We strive to support your good health and well-being through high quality supplements at the best value.
Healthy Immune Support: As Vitamin D is naturally formed in the body directly from sunshine exposure, its levels can be easily disrupted if our outdoor time is limited. Bronsons Vitamin D3 provides the same form of Vitamin D that we obtain from the sun and helps to enable valuable daily replenishment to maintain overall good health.*
Superior Quality: Laboratory tested GMO-Free, Gluten-Free and Soy-Free. Bronson products are in-house tested and carefully manufactured by trained professionals in our state-of-the-art facility that is located in Hauppauge, New York
cGMP Premium Standards: Every product manufactured by Bronson is put through a rigorous process to ensure purity, potency and integrity. Through our very own cGMP Certified New York Facility that complies with the most current regulations, we promise to deliver top-quality supplements that are consistently verified for quality and safety
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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Best Value

8.8

Save 51%

Nature Made

Nature Made Extra Strength Vitamin D3 5000 IU (125 mcg), Dietary Supplement for Bone, Teeth, Muscle and Immune Health Support, 180 Softgels, 180 Day Supply

51% OffFree Shipping

Main Highlights

Immune, muscle, teeth and bone health support supplement: contains one 180 count bottle of Nature Made Extra Strength Vitamin D3 5000 IU (125 mcg) Softgels for a 180-day supply
Nature Made Vitamin D 5000 IU softgels help improve calcium absorption, support bone health, teeth health, muscle health, and provide immune support
This high dose Vitamin D 3 product is for those with higher Vitamin D needs and/or deficiency, as determined by a healthcare professional (1)
Adults, take one Vitamin D3 Nature Made softgel daily with water and a meal
Sourced from high-quality ingredients, this Nature Made Vit D3 supplement is gluten free and has no color added and no artificial flavors
United States Pharmacopeia (USP) Verified, Number 1 Pharmacist Recommended Vitamin & Supplement Brand*
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

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8.6

THORNE

THORNE Vitamin D-5000 - Vitamin D3 Supplement - Support Healthy Bones, Teeth, Muscles, Cardiovascular, and Immune Function - NSF Certified for Sport - Dairy-Free, Soy-Free - 60 Capsules

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Main Highlights

Vitamin D3: Supports healthy teeth, bones, and muscles, as well as cardiovascular health and immune function*
Optimal Absorption: Vitamin D3 is more potent and better absorbed than vitamin D2*
NSF Certified: Supports high-performance nutrition programs and is NSF Certified for Sport
Free From: Doesn't contain gluten, eggs, tree nuts, peanuts, dairy, soy, fish, or shellfish
Trusted: Thorne is chosen by champions and trusted by 100+ professional sports teams, a proud partner of U.S. National Teams, and the #1 recommended clinical brand by health-care practitioners

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8.3

Sports Research

Sports Research Vitamin D3 K2 with Coconut Oil | Plant Based Vitamin K2 MK7 + Vegan D3 5000iu | Vegan Certified, Soy & Gluten Free - 60 Count Softgels

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Main Highlights

D3+K2 - BETTER TOGETHER: On their own, Vitamins D3 and K2 are essential micronutrients, but together, they're an essential team. Vitamin D3 helps your body absorb calcium, while vitamin K2 directs calcium to your bones instead of joints and arteries, where too much calcium could be problematic. Not that's teamwork!
PLANT BASED: Our Vitamin D and K supplement for women and men contains vegan D3 (cholecalciferol) from lichen and K2 from fermented chickpeas with added Coconut MCT Oil for enhanced absorption. This two-in-one super supplement is 100% free of animal ingredients and encapsulated in the first carrageenan-free plantgel softgel.
ONE-A-DAY FORMULA: Get the best of both worlds with Sports Research D3+K2. Just one easy-to-swallow veggie softgel provides 125cg (5000iu) of Vegan & 100mcg of Vitamin K2 (as MK7, the form of K2 with the highest bioavailability) for stronger bones and immune system support so you can shine your brightest.*
QUALITY TESTED: We hold all of our supplements to a higher standard. Our K2 with D3 vitamin supplement is Vegan Certified, Non-GMO Project Verified, and free of unwanted fillers, carrageenan, gluten, and soy. Each batch is third-party tested for quality and manufactured in the USA in a cGMP-compliant facility.
THE SPORT OF LIFE: Founded in Southern California in 1980, Sports Research is a family-owned business born from a passion for fitness and wellness. Our goal is to embrace the sport of life through research-backed products created for every bodyinside and out.

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8.1

VivoNu

Vitamin D3 10000 iu Plus K2 (MK-7) 200 mcg, 300 Coconut Oil Softgels| 2 in 1 VIT D & K Complex | Supports Calcium Absorption, Bone, Immune, & Heart Health – Easy to Swallow (300 Softgels /1 Bag)

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Main Highlights

VivoNu Double Strength:2 in 1 Vitamin D3 + K2 coconut oil softgels. An efficiently absorbed formula that contains D3 as cholecalciferol and K2 in its top grade menaquinone (MK7) form.The MCT coconut oil offers perfect fat for maximum nutrient bioavailability.
Overall Health:Vitamin D3 + K2 are essential micronutrients for adults that work together to support proper calcium absorption to our bones and teeth, while also promoting joint health, immune defense, and heart function
Easy to swallow:Each bag contains 300 softgels, one softgel per day ensures optimal levels of two key vitamins for a more complete body
Vegan & Cruelty-Free:Premium non-GMO vitamin D3 + K2 supplements. Made without soy, dairy, gluten, preservatives, flavors, and peanuts. Suitable for vegan and vegetarian
Note:This product is a creamy yellow capsule, not golden yellow. There may be creamy white spots in the softgel. If they stick together, you can shake them apart without affecting the effect. There may be a slight odor when you first open it.

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8.1

Pure Encapsulations

Pure Encapsulations Vitamin D3 & K2 | Bone and Vascular Health Support | 120 Capsules*

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Main Highlights

Bone Support: Helps with healthy calcium utilization to maintain bone health*
Vascular Support: D3 & K2 supports vascular tissue to support healthy arterial calcium balance and vascular elasticity*
Immune support: Supports immune function with vitamin D3*
Pure Quality: Our supplements are made with only premium ingredients sourced from trusted suppliers and guided by our nutritional experts, then carefully manufactured and tested to verify their potency and purity
Pure Difference: What makes us different isn't just our process or what goes into our supplements -- what we leave out matters, too. Pure Encapsulations products are FREE FROM wheat, eggs, tree nuts & peanuts, gluten, artificial colors, flavors & sweeteners, coatings and shellacs, GMOs, and unnecessary binders, fillers & preservatives

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Our Best Overall Choice

Best Choice

9.7

Nature Made

Nature Made Vitamin D3 K2, 5000 IU (125 mcg) Vitamin D, Dietary Supplement for Bone, Teeth, Muscle and Immune Health Support, 30 Softgels, 30 Day Supply

19% OffFree 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

Strong bone support supplement: contains one 30 count bottle of Nature Made Vitamin D3 K2 Softgels for a 30-day supply
Nature Made Vitamin D3 and K2 softgels provide 5000 IU (125 mcg) of Vitamin D for immune support and to support healthy aging, bone health, teeth health and muscle health
Provides 100 mcg of Vitamin K2 to support healthy artery function; Adding K2 to D3 helps direct calcium to bones
Adults, take one of these D3 and K2 softgels daily with water; Designed for those with higher Vitamin D needs and/or deficiency, as determined by a healthcare professional(1)
Made in the USA with quality global ingredients, these gluten free Vitamin K2 D3 softgels contain no synthetic dyes and no artificial flavors
#1 Pharmacist Recommended Vitamin & Supplement Brand*
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

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