We check the certifications behind the best-rated products, so you buy the right one first time.
Home › Vitamin D3 K2 Supplements › Best Vitamin D3 K2 Supplement

Best Vitamin D3 K2 Supplements (2026)

We took the best-rated vitamin D3 K2 supplements on Amazon and checked the safety records and quality standards behind each one, so you can get the right supplement first time.

By the Consumer Product Authority Ratings Desk · Updated October 2026 · How we picked these

We may earn a commission if you buy through our links, at no cost to you. It never changes a rating.

260+ top-ratedvitamin d3 k2 supplements compared
Top pickschecked in official records
0 certificationsconfirmed in official records
0 recallsa clean safety record for every pick
Our #1 pick
Micro Ingredients Vitamin D3 K298% approval rating · 300 softgels of 5,000 IU D3 and 100 mcg K2, non-GMO, gluten-free, and third-party tested for purity.
Check today's price on Amazon

The ratings that matter, and what they mean for you

For supplements, what matters most to shoppers is clean labeling, manufacturing quality, third-party testing, and formulation transparency — so those are the details we looked for in every listing and safety record.

Clean safety record

Safety record check

What it is: We check official government recall databases, and for connected devices the US government's list of actively exploited security flaws, for every product.

What it means for you: Every product on this page has a clean record. Products with a recall or an official security warning never make our lists.

Buy without worrying that it'll be pulled from sale.

Our picks with this rating: Every pick on this page.

Micro Ingredients Vitamin D3 K2
Want the one with the most ratings?
Micro Ingredients Vitamin D3 K2
✓ Clean safety recordno recalls or flags
Check today's price on Amazon

At a glance

ProductReviewson AmazonClean safety recordno recalls or flagsApprovalrating
1Micro Ingredients Vitamin D3 K2Best overall: large supply, third-party tested 27,800+Amazon reviews✓98%Check price
2Nutricost Vitamin D3 K2Best for trying a smaller bottle first 5,800+Amazon reviews✓97%Check price
3Nutraharmony Vitamin D3 K2Best for extra-strength D3 with MK-7 K2 3,300+Amazon reviews✓97%Check price
4UpNourish Liposomal D3 K2Best for liposomal absorption technology 5,600+Amazon reviews✓97%Check price
5VEV Vitamin D3 K2Best for highest combined D3 and K2 per softgel 4,400+Amazon reviews✓96%Check price

The 5 best vitamin d3 k2 supplements for best vitamin d3 k2 supplement

Ranked by approval rating: certifications confirmed in official records, plus what thousands of Amazon owners say in their reviews.

★ Our #1 pick · Best overall: large supply, third-party tested
Micro Ingredients Vitamin D3 K2
No. 1

Micro Ingredients Vitamin D3 K2

27,800+ Amazon reviews
✓ Clean safety recordno recalls or flags
98%
Approval rating
Certifications held100%
Owner reviews94%
Check today's price on Amazon

Our review

Micro Ingredients packs 300 mini softgels into each pouch, giving you a full ten months of daily servings at 5,000 IU of vitamin D3 and 100 mcg of vitamin K2 as MK-7. The brand states these are third-party lab tested for purity and safety, which adds an independent check beyond the manufacturer's own quality controls. The formula is free from GMOs, gluten, dairy, soy, tree nuts, preservatives, and artificial colors or flavors — a notably clean label for a daily supplement.

Why we like it
  • 300 mini softgels — up to ten months' supply in one pouch
  • Third-party lab tested for purity and safety
  • Free from GMOs, gluten, dairy, soy, tree nuts, preservatives, and artificial colors
Daily dose5,000 IU D3 + 100 mcg K2 MK-7Servings per pack300 softgelsLabel claimsNon-GMO, Gluten-Free, No Dairy, No SoyAmazon reviews27,800+

Good to know: If you'd rather start with a smaller bottle before committing, the 120-softgel Nutricost (#2) covers the same daily dose.

Its ratings, explained

  • 🛡 Clean safety record: Safety record check

    Every product on this page has a clean record. Products with a recall or an official security warning never make our lists.

27,800+Amazon reviews98% approval rating
Check today's price on Amazon
Best for trying a smaller bottle first
Nutricost Vitamin D3 K2
No. 2

Nutricost Vitamin D3 K2

5,800+ Amazon reviews
✓ Clean safety recordno recalls or flags
97%
Approval rating
Certifications held100%
Owner reviews93%
Check today's price on Amazon

Our review

Nutricost delivers the same popular pairing — 5,000 IU of vitamin D3 and 100 mcg of vitamin K2 as MK-7 — in a 120-softgel bottle, making it a practical choice if you want to test how D3 K2 works for you before buying a larger supply. The product is made in a GMP-compliant, FDA-registered facility, which means the manufacturing environment meets federally recognized good manufacturing practice standards. It is also non-GMO and gluten-free.

Why we like it
  • 120-softgel size — great for trying D3 K2 supplementation
  • Made in a GMP-compliant, FDA-registered facility
  • Non-GMO and gluten-free
Daily dose5,000 IU D3 + 100 mcg K2 MK-7Servings per pack120 softgelsFacility standardGMP-compliant, FDA-registeredAmazon reviews5,800+

Good to know: For a longer-lasting supply of the same dose, the 300-softgel Micro Ingredients (#1) is worth a look.

Its ratings, explained

  • 🛡 Clean safety record: Safety record check

    Every product on this page has a clean record. Products with a recall or an official security warning never make our lists.

5,800+Amazon reviews97% approval rating
Check today's price on Amazon
Best for extra-strength D3 with MK-7 K2
Nutraharmony Vitamin D3 K2
No. 3

Nutraharmony Vitamin D3 K2

3,300+ Amazon reviews
✓ Clean safety recordno recalls or flags
97%
Approval rating
Certifications held100%
Owner reviews93%
Check today's price on Amazon

Our review

Nutraharmony is formulated for people who need a higher-potency vitamin D3 intake — each capsule delivers 10,000 IU of vitamin D3 alongside 120 mcg of vitamin K2 as MK-7. The brand pairs these two fat-soluble vitamins together specifically because D3 and K2 work synergistically: D3 supports calcium absorption while K2 as MK-7 helps direct calcium to where it belongs in bones and teeth. The 120-capsule format provides a four-month supply at one capsule per day.

Why we like it
  • High-potency 10,000 IU D3 per serving
  • 120 mcg of K2 as MK-7 — a highly bioavailable form
  • Synergistic D3 + K2 pairing for bone and calcium support
Daily dose10,000 IU D3 + 120 mcg K2 MK-7Servings per pack120 capsulesK2 formMK-7 (highly bioavailable)Amazon reviews3,300+

Good to know: If 10,000 IU feels like more than you need, the 5,000 IU options from Micro Ingredients (#1) or Nutricost (#2) are strong alternatives.

Its ratings, explained

  • 🛡 Clean safety record: Safety record check

    Every product on this page has a clean record. Products with a recall or an official security warning never make our lists.

3,300+Amazon reviews97% approval rating
Check today's price on Amazon
Best for liposomal absorption technology
UpNourish Liposomal D3 K2
No. 4

UpNourish Liposomal D3 K2

5,600+ Amazon reviews
✓ Clean safety recordno recalls or flags
97%
Approval rating
Certifications held100%
Owner reviews93%
Check today's price on Amazon

Our review

UpNourish sets itself apart with a liposomal delivery format — the nutrients are encased in lipid layers designed to support absorption in the body. Each mini softgel is made with organic coconut oil as a carrier, which suits the fat-soluble nature of both D3 and K2. At 365 softgels per pack, this is a full year's supply at one softgel per day, delivering 5,000 IU of D3 and 100 mcg of K2 MK-7 per serving. The brand also notes its products are recommended by pharmacy professionals.

Why we like it
  • Liposomal formula designed for enhanced absorption
  • Made with organic coconut oil as a fat-soluble carrier
  • 365 softgels — a full year's supply in one pack
Daily dose5,000 IU D3 + 100 mcg K2 MK-7Servings per pack365 softgelsCarrierOrganic coconut oilAmazon reviews5,600+

Good to know: If liposomal technology isn't a priority, the third-party tested Micro Ingredients (#1) offers a similarly generous supply.

Its ratings, explained

  • 🛡 Clean safety record: Safety record check

    Every product on this page has a clean record. Products with a recall or an official security warning never make our lists.

5,600+Amazon reviews97% approval rating
Check today's price on Amazon
Best for highest combined D3 and K2 per softgel
VEV Vitamin D3 K2
No. 5

VEV Vitamin D3 K2

4,400+ Amazon reviews
✓ Clean safety recordno recalls or flags
96%
Approval rating
Certifications held100%
Owner reviews91%
Check today's price on Amazon

Our review

VEV packs the highest per-serving potency on this list into a single softgel — 10,000 IU of vitamin D3 and 200 mcg of vitamin K2 as MK-7 — with coconut oil as the fat-soluble carrier. The brand positions it for adults with limited sun exposure, busy or indoor lifestyles, or frequent travel who want one simple softgel per day to cover their D3 and K2 needs. The 300-softgel pack provides a ten-month supply, and the product is manufactured in a GMP-certified facility with independent third-party testing through NSF.

Why we like it
  • 10,000 IU D3 and 200 mcg K2 MK-7 — highest combined dose on this list
  • NSF third-party tested and GMP-certified facility
  • 300 softgels with coconut oil base — one softgel per day
Daily dose10,000 IU D3 + 200 mcg K2 MK-7Servings per pack300 softgelsThird-party testingNSF tested, GMP-certified facilityAmazon reviews4,400+

Good to know: For a lower daily dose, both Micro Ingredients (#1) and Nutricost (#2) offer 5,000 IU D3 with 100 mcg K2.

Its ratings, explained

  • 🛡 Clean safety record: Safety record check

    Every product on this page has a clean record. Products with a recall or an official security warning never make our lists.

4,400+Amazon reviews96% approval rating
Check today's price on Amazon

Our verdict

Micro Ingredients Vitamin D3 K2 is the pick for anyone who wants a large, long-lasting supply of a clean, third-party tested D3 K2 softgel at a standard 5,000 IU dose. If you prefer a leaner bottle to try first, Nutricost offers the same daily dose in a 120-softgel format. For those who need an extra-strength dose, Nutraharmony and VEV both deliver 10,000 IU per serving.

Get the Micro Ingredients Vitamin on Amazon

Questions shoppers ask

Why are D3 and K2 combined in one supplement?

Vitamin D3 helps your body absorb calcium from food, while vitamin K2 (as MK-7) helps direct that calcium to your bones and teeth rather than letting it accumulate in soft tissues. The two vitamins work together synergistically, which is why pairing them in one daily softgel or capsule has become a popular formulation choice.

What is MK-7 and why does it matter?

MK-7 is a specific form of vitamin K2 that is considered highly bioavailable — meaning the body can absorb and use it efficiently. All five supplements on this list use K2 in the MK-7 form, which is why you'll see it called out on each label.

What's the difference between 5,000 IU and 10,000 IU of vitamin D3?

5,000 IU is a widely used daily dose for adults looking to maintain healthy vitamin D levels. 10,000 IU is a higher-potency option that some people seek out when they have limited sun exposure, increased nutritional demands, or other specific needs. It's always worth speaking with your healthcare provider about the dose that's right for you.

What does third-party testing mean for a supplement?

Third-party testing means an independent organization outside the manufacturer has checked the product for purity, potency, or safety — not just the brand itself. Among the picks on this list, Micro Ingredients states third-party lab testing for purity and safety, and VEV is tested through NSF, a recognized independent testing body.

How we picked and rated these

We don't test products ourselves. We do the digging: owner reviews, specs and the official records behind every certification.

Found 260+ top-rated vitamin d3 k2 supplements on Amazon

Every one we could find with strong ratings from real owners, across Amazon and our partner networks.

Shortlisted the best fits for "Best Vitamin D3 K2 Supplement"

Judged on each model's specs, what owners say in their reviews, and how many people are buying it.

Checked their certifications in the official records

We looked up the certifications and safety records that matter for this kind of product in the official records of the bodies that issue them. Anything with a recall or an official security warning is out.

Ranked the top 5 by approval rating

Certifications confirmed in official records count for 60%. How happy Amazon owners are, weighted by how many have reviewed it, counts for 40%.

How our approval rating works

Certifications, 60%

How many of the key certifications for this kind of product it holds, each one confirmed in the official record of the body that issues it.

Owner reviews, 40%

How happy Amazon owners are with it, weighted by how many have reviewed it. Thousands of happy owners count for more than a handful.

Independent

Brands can't pay for a place or a better score. We link to every official record we use. How we rate

#1: Micro Ingredients Vitamin D3 K2 · 98% approvalCheck price