Choosing the right K2 + D3 supplement isn’t just about ticking a box on your daily vitamin routine; it’s a strategic move for bone health, cardiovascular support, and immune resilience.
With countless formulas crowding the market, deciphering which product delivers optimal absorption, balanced dosages, and high‑quality ingredients can feel overwhelming.
In this post we cut through the noise by spotlighting the top 10 best K2 D3 supplements, evaluating everything from bioavailability and purity to price and user feedback.
Whether you’re a seasoned health enthusiast or just starting to fine‑tune your nutrient stack, our curated review will help you make an informed choice and boost your wellness goals.
10 Best K2 D3 Supplements You’ll Love – Top Picks
We’ve carefully evaluated each formula, so you can confidently choose the supplement that best supports your bone health and immunity.
10. Bronson Vitamin K2 (MK7) D3 Supplement Capsules
Bronson’s Vitamin K2 (MK‑7) with D3 is a thoughtfully paired, non‑GMO supplement designed to unlock the full potential of each nutrient.
Each softgel delivers 5,000 IU of vitamin D3 and 90 µg of the highly bioavailable MK‑7 form of vitamin K2, supporting calcium’s optimal absorption and directing it straight to bone tissue where it’s needed most.
The capsules are laboratory‑tested, gluten‑free, soy‑free, and produced in Bronson’s state‑of‑the‑art New York facility—a legacy of quality dating back to 1960 when pharmacists first recognized the power of synergistic vitamin therapy.
Easy to swallow and conveniently packaged in a 120‑capsule bottle, this D & K complex fits seamlessly into daily routines, helping maintain strong bones, cardiovascular health, and overall vitality.
| Key Spec | Detail |
|---|---|
| Vitamin D3 | 5,000 IU per capsule |
| Vitamin K2 (MK‑7) | 90 µg per capsule |
| Servings per bottle | 120 capsules (≈4 months) |
| Formulation | Non‑GMO, gluten‑free, soy‑free |
| Testing | Lab‑tested in NY facility |
| Manufacturer | Bronson Vitamins (since 1960) |
Pros
- Synergistic blend – Vitamin K2 enhances D3’s calcium‑routing, maximizing bone and cardiovascular benefits.
- High potency, low dose count – 5,000 IU D3 + 90 µg K2 per softgel means fewer pills for a month’s supply.
- Clean, tested formula – Non‑GMO, gluten‑free, soy‑free, and verified in a certified lab.
Cons
- May be unnecessary for individuals already meeting D3/K2 needs through diet or other supplements.
- Softgel size could be a challenge for those with difficulty swallowing pills.
9. Nutricost Vitamin K2 (MK7) Softgels
Vitamin K2 (as MK‑7) paired with high‑potency Vitamin D3 delivers a powerful, synergistic blend that supports bone health, cardiovascular function, and immune resilience.
Each softgel supplies 100 µg of the long‑acting MK‑7 form of K2, which efficiently directs calcium to the right places, while 5,000 IU of D3 boosts calcium absorption and promotes optimal hormone balance.
The formula is gluten‑free, non‑GMO, and manufactured in a GMP‑compliant, FDA‑registered facility, ensuring purity and consistency.
With 120 softgels per bottle, you get a full four‑month supply of daily support, making it easy to stay on track with your wellness routine without worrying about fillers or allergens.
| Key Spec | Amount per Serving | Notes |
|---|---|---|
| Servings per bottle | 120 | 4‑month supply |
| Vitamin K2 (MK‑7) | 100 µg | Long‑acting, plant‑derived |
| Vitamin D3 | 5,000 IU | High potency, supports immunity |
| Gluten‑Free | ✓ | Suitable for sensitive diets |
| Non‑GMO | ✓ | Clean, responsibly sourced |
Pros
- Dual‑action formula: K2 guides calcium while D3 enhances its absorption.
- High potency: 5,000 IU D3 meets daily needs for most adults.
- Clean label: Gluten‑free, non‑GMO, and manufactured in a GMP‑compliant facility.
Cons
- Large D3 dose may be excessive for individuals already taking high‑dose supplements.
- Softgel size could be challenging for those with difficulty swallowing pills.
8. VEV Vitamin D3 K2 10,000 IU – 300 Softgels
Vitamin D3 K2 10,000 IU with Magnesium is a science‑backed softgel blend designed for anyone who needs reliable, daily support for energy, bone strength, and muscle function.
Each serving delivers 10,000 IU of vegan‑derived D3, 200 µg of MK‑7 K2, and a magnesium complex (glycinate + malate) that actively activates D3, ensuring the vitamin works where it matters most.
Zinc citrate rounds out the formula, while coconut‑oil carriers boost the absorption of these fat‑soluble nutrients without extra dietary fat.
The synergy of D3, K2, and magnesium guides calcium to bones and teeth, prevents it from depositing in soft tissue, and helps maintain optimal calcium metabolism.
With 300 softgels (3 per day), the pouch offers roughly 100 days of consistent support—ideal for those with limited sun exposure, higher physiological needs, or a diagnosed deficiency.
The plant‑based, gluten‑free, dairy‑free softgels are free from artificial colors and preservatives, making them gentle on the stomach and convenient for travel.
| Key Spec | Detail |
|---|---|
| Vitamin D3 (IU) | 10,000 IU per serving (3 softgels) |
| Vitamin K2 (MK‑7) | 200 µg per serving |
| Magnesium (glycinate + malate) | 150 mg per serving |
| Zinc (citrate) | 15 mg per serving |
| Carrier oil | Coconut oil (medium‑chain triglycerides) |
| Softgel count | 300 (≈ 100 days) |
| Vegan / Gluten‑free / Dairy‑free | Yes |
Pros
- Synergistic activation: Magnesium unlocks D3’s potency, while K2 directs calcium to bone, maximizing overall efficacy.
- High‑potency, vegan source: Lichen‑derived D3 and MK‑7 provide 10,000 IU without animal ingredients.
- Convenient long‑term supply: 300 softgels cover ~100 days, reducing refill frequency.
Cons
- High dosage: 10,000 IU may be excessive for individuals without a confirmed deficiency; professional guidance is recommended.
- Three softgels daily: May be inconvenient for users preferring a single‑pill regimen.
7. NOW Supplements, Vitamin D-3 & K-2, 120 Caps.
NOW Supplements Vitamin D‑3 & K‑2 delivers a synergistic blend of two nutrients that are heavily researched for bone, tooth and cardiovascular health.
Each vegetarian capsule provides 1,000 IU (25 µg) of Vitamin D3 and 45 µg of Vitamin K2, a dosage shown to support immune function, calcium metabolism and the formation of a strong bone matrix.
The formula is non‑GMO, Kosher, soy‑free and manufactured in a GMP‑certified, ISO/IEC‑accredited facility in the USA.
With 120 capsules per bottle, this family‑owned brand—operating since 1968—offers a convenient, plant‑based way to maintain skeletal strength and heart health while fitting into a busy lifestyle.
| Specification | Detail |
|---|---|
| Dosage per capsule | 1,000 IU Vitamin D3 / 45 µg Vitamin K2 |
| Quantity | 120 vegetarian capsules |
| Certifications | Non‑GMO, Kosher, Soy‑Free |
| Manufacturing | GMP‑Quality Assured, ISO/IEC accredited labs |
| Origin | Packaged in the USA (family‑owned since 1968) |
Pros
- Dual‑action support for bone density and cardiovascular function.
- High‑potency, plant‑based dosage that aligns with current research on immune and bone health.
- Clean label: non‑GMO, Kosher, soy‑free, and manufactured under strict GMP standards.
Cons
- May be unnecessary for individuals already meeting vitamin D/K needs through diet or sunlight.
- Not suitable for those requiring a higher vitamin K2 dose for specific medical conditions.
6. Dr. Berg Vitamin D3 & K2 Capsules
Vitamin D3 & K2 10,000 IU + MK‑7 from Dr. Berg is a powerhouse blend designed for daily, all‑in‑one support of immunity, bone strength, and cardiovascular health.
Each capsule delivers a clinically‑backed dose of vitamin D3, vitamin K2 (MK‑7), magnesium, zinc, and vitamin B6—ingredients that work synergistically to enhance calcium metabolism, promote healthy blood pressure, and keep the immune system primed.
The formula is clean and simple: no maltodextrin, starch, gluten, or filler‑laden binders, just pure, non‑GMO nutrients verified by four rounds of lab testing for purity and safety.
Developed by Dr. Eric Berg, a trusted health educator, this supplement offers a convenient 120‑day supply in a single daily capsule, making it easy to stay on track without juggling multiple pills.
Formulated in a cGMP‑certified facility in the USA, it’s a reliable choice for anyone looking to fill the nutritional gaps that modern diets often miss.
| Specification | Detail |
|---|---|
| Serving Size | 1 capsule |
| Capsules per Bottle | 120 |
| Key Nutrients | Vitamin D3 10,000 IU, Vitamin K2 MK‑7, Magnesium, Zinc, Vitamin B6 |
| Free From | Maltodextrin, starch, gluten, GMOs, fillers |
| Testing | 4‑X lab‑tested, third‑party heavy‑metal screening |
Pros
- High‑absorption, 7‑in‑1 formula delivers synergistic nutrients in one clean capsule.
- Rigorous purity assurance with four layers of lab testing guarantees safety and potency.
- Convenient 120‑day supply eliminates the need for multiple supplements or daily juggling.
Cons
- The 10,000 IU dose of vitamin D3 may be too high for individuals already taking a supplement; consult a healthcare professional.
- Not suitable for vegans due to the source of vitamin K2 (MK‑7) derived from bacterial fermentation.
5. Nature Made D3 K2 Softgels
Nature Made’s Vitamin D3 + K2 softgels deliver a potent 5,000 IU (125 µg) dose of vitamin D3 paired with 100 µg of vitamin K2 in a convenient, once‑daily softgel.
Designed for adults with higher vitamin D needs, the formula supports immune health, healthy aging, and optimal calcium utilization—K2 helps steer calcium to bones and teeth while keeping arteries clear.
Each bottle provides a full 30‑day supply of gluten‑free, USA‑made softgels that contain no synthetic dyes or artificial flavors, making them a clean, pharmacist‑recommended choice for bone, muscle, and cardiovascular support.
Ideal for those with a diagnosed deficiency or who simply want a robust, synergistic bone‑health boost, these softgels are easy to swallow and fit seamlessly into a daily routine.
| Key Spec | Detail |
|---|---|
| Servings per bottle | 30 (30‑day supply) |
| Vitamin D3 per serving | 5,000 IU (125 µg) |
| Vitamin K2 per serving | 100 µg (MK‑7) |
| Form | Softgel (gluten‑free) |
| Country of manufacture | USA |
| Additives | No synthetic dyes, no artificial flavors |
| Recommended use | 1 softgel daily with water |
Pros
- High‑potency D3 + K2 combo efficiently supports bone density and arterial health.
- Gluten‑free & clean label with no synthetic dyes or artificial flavors, suitable for sensitive diets.
- Pharmacist‑recommended brand ensures quality and consistency, made with globally sourced ingredients in the USA.
Cons
- May be unnecessary for individuals already meeting their vitamin D needs through diet or sunlight.
- The 5,000 IU dose is high; users should consult a healthcare professional before starting, especially if on other supplements or medications.
4. Pure Encapsulations Vitamin D3 & K2 120 Caps
Pure Encapsulations Vitamin D3 & K2 delivers a synergistic blend of two essential nutrients that work together to keep your skeleton strong, your arteries flexible, and your immune system ready for seasonal challenges.
Each soft‑gel capsule provides 4,000 IU of vitamin D3 plus a clinically‑supported dose of vitamin K2, promoting optimal calcium absorption and directing calcium to bone tissue rather than blood‑vessel walls.
The formula is gluten‑free, non‑GMO, and formulated without common allergens, artificial colors, or unnecessary fillers—so you get pure, potent support you can trust.
Ideal for anyone looking to maintain bone density, support cardiovascular health, and boost immune resilience, this 120‑capsule bottle offers a convenient, high‑quality daily dose that fits seamlessly into busy lifestyles.
| Specification | Detail |
|---|---|
| Form | Soft‑gel capsules |
| Quantity | 120 capsules |
| Vitamin D3 | 4,000 IU per capsule |
| Vitamin K2 | Clinically‑supported dose (MK‑7) |
| Gluten Free | Yes |
| Non‑GMO | Yes |
| Allergen‑Free | Free from common allergens |
Pros
- Dual‑action bone & vascular support – D3 enhances calcium uptake while K2 directs calcium to bones and away from arteries.
- Immune boost – 4,000 IU of D3 helps maintain seasonal immune health.
- Clean label – No gluten, GMOs, or unnecessary additives.
Cons
- May be higher in vitamin D3 than needed for individuals already meeting their daily intake; consult a healthcare professional.
- Not suitable for vegans due to capsule composition.
3. Dr. Berg D3 & K2 5,000 IU Capsules
Vitamin D3 & K2 from Dr. Berg delivers a powerhouse blend of 5,000 IU vitamin D3, MK‑7 K2, magnesium, zinc and vitamin B6—all in one clean capsule.
Designed to bolster immunity, fortify bones, and support cardiovascular health, the formula skips fillers like maltodextrin, starch, and gluten, offering pure, science‑backed nutrition you can trust.
Each dose is calibrated for optimal absorption, so you get the full benefit without juggling multiple pills.
Developed by Dr. Eric Berg, a respected health educator, the supplement is manufactured in a cGMP‑certified U.S. facility and undergoes four rounds of lab testing—including third‑party heavy‑metal screening—to guarantee purity and safety.
With 60 capsules, you have two months of effortless, daily support that fits seamlessly into any routine.
| Specification | Detail |
|---|---|
| Vitamin D3 (as Cholecalciferol) | 5,000 IU per capsule |
| Vitamin K2 (MK‑7) | 100 µg per capsule |
| Magnesium (as Magnesium Glycinate) | 100 mg per capsule |
| Zinc (as Zinc Picolinate) | 15 mg per capsule |
| Vitamin B6 (as Pyridoxine HCl) | 5 mg per capsule |
| Capsule Count | 60 (60‑day supply) |
| Formulation | 7‑in‑1, non‑GMO, no maltodextrin, gluten, starch |
| Testing | 4× lab‑tested, third‑party heavy‑metal screen |
| Manufacturing | cGMP‑certified, USA |
Pros
- Comprehensive immunity & bone support in a single daily capsule.
- Clean, high‑absorption formula free from common allergens and fillers.
- Rigorous 4‑step lab testing ensures purity and safety.
Cons
- May be too potent for those needing lower vitamin D doses; consult a healthcare provider.
- Only 60 capsules per bottle, requiring a refill every two months for continuous use.
2. Micro Ingredients Vitamin D3 + K2 300 Softgels
Micro Ingredients’ 2‑in‑1 Vitamin D3 + K2 softgels pack a powerhouse of sunshine‑vitamin support in a tiny, easy‑to‑swallow capsule.
Each of the 300 mini softgels is infused with virgin MCT coconut oil, a clean fat source that dramatically improves the absorption of the fat‑soluble vitamins.
One softgel delivers a clinically potent 10,000 IU of vitamin D3 (cholecalciferol) and 200 µg of vitamin K2 as the superior MK‑7 form, working together to promote bone health, cardiovascular balance, and immune resilience.
The formula is non‑GMO, gluten‑free, and free from soy and dairy, with every batch third‑party tested for purity and potency. Ideal for adults seeking an extra‑strength, once‑daily boost without the hassle of large pills.
| Key Specs | |
|---|---|
| Servings per pouch | 300 |
| Vitamin D3 | 10,000 IU (250 µg) per softgel |
| Vitamin K2 (MK‑7) | 200 µg per softgel |
| Carrier oil | Virgin MCT coconut oil |
| Form | Mini softgel (easy‑swallow) |
| Allergens | Soy‑free, dairy‑free, gluten‑free |
| Certification | Non‑GMO, third‑party tested |
Pros
- Maximum absorption – MCT coconut oil ensures the fat‑soluble vitamins are utilized efficiently.
- Synergistic dosing – D3 and K2 MK‑7 work together for superior bone and cardiovascular support.
- Convenient potency – One softgel a day provides an extra‑strength dose without large pills.
Cons
- High dose – 10,000 IU of D3 may be excessive for those already meeting their daily requirement; consult a healthcare professional.
- Mini size – While easy to swallow, the tiny softgel may be difficult for individuals with severe swallowing issues.
1. Sports Research Vitamin D3 + K2
Sports Research® Vitamin D3 + K2 blends vegan, plant‑based D3 (5000 IU) from lichen with MK‑7 K2 (100 µg) derived from fermented chickpeas, all suspended in coconut MCT oil for optimal absorption.
The duo works in tandem: D3 boosts calcium uptake while K2 directs the mineral to bone tissue, supporting a sturdy skeleton, a resilient immune system, and healthy cardiovascular function.
One softgel a day delivers clinically potent, non‑synthetic nutrition without animal ingredients, soy, gluten, carrageenan, or artificial fillers.
Manufactured in a cGMP‑compliant U.S. facility and verified by third‑party testing, the formula carries Vegan Certified and Non‑GMO Project Verified seals, giving you confidence in purity and potency.
Whether you’re an athlete, a busy professional, or anyone looking to fortify bone and immune health, this clean, science‑backed supplement fits seamlessly into a daily routine.
| Specification | Detail |
|---|---|
| Form | Softgel (vegan) |
| Servings per container | 60 (1‑month supply) |
| Vitamin D3 | 5000 IU (125 µg) per softgel |
| Vitamin K2 (MK‑7) | 100 µg per softgel |
| Base oil | Coconut MCT oil |
| Certifications | Vegan Certified, Non‑GMO Project Verified |
| Allergen free | Soy, gluten, carrageenan, dairy, gelatin |
| Manufacturing | cGMP‑compliant, USA, third‑party tested |
Pros
- Synergistic D3 + K2 combo maximizes calcium utilization for stronger bones and immune support.
- Fully vegan & clean – sourced from lichen and fermented chickpeas, free from common allergens and artificial additives.
- Convenient once‑daily dose provides clinical strength without the need for multiple pills.
Cons
- May be costlier than conventional animal‑based D3/K2 supplements.
- Softgel size could be challenging for those who have difficulty swallowing pills.
Buying Guide
When choosing a K2‑D3 supplement, prioritize purity, clinically backed dosages, and proven absorption to ensure the vitamins work synergistically for bone and cardiovascular health.
Equally important are third‑party testing, price per active dose, and genuine consumer feedback that reflects real‑world effectiveness.
Key Factors Buyers Should Consider
Quality & Purity
Look for supplements that use pharmaceutical‑grade vitamin K2 (as MK‑7) and D3 (as cholecalciferol), sourced from reputable manufacturers.
The product should be free from unnecessary fillers, artificial colors, and allergens. Transparent labeling of each ingredient, including the exact IU of D3 and µg of K2, signals a commitment to purity and safety.
Ingredient Form & Dosage
Choose a formula that provides the clinically studied dose—typically 100–200 µg of K2 (MK‑7) and 1,000–2,000 IU of D3 per serving.
The form matters: MK‑7 has a longer half‑life than MK‑4, while D3 is more effective than D2. Consistent daily dosing ensures optimal bone and cardiovascular support for most adults throughout life.
Bioavailability & Synergy
Effective K2‑D3 blends pair the fat‑soluble vitamins with a modest amount of healthy oil, such as MCT or olive oil, to boost absorption.
Look for products that cite bioavailability studies or use a micronized form, ensuring the nutrients reach circulation efficiently and work together to regulate calcium metabolism in the body.
Third‑Party Testing
Independent verification is a strong indicator of trustworthiness. Certifications from labs such as NSF, USP, or ConsumerLab confirm that the supplement contains the labeled amounts of K2 and D3 and is free from contaminants like heavy metals, pesticides, and microbials. Look for a clear batch number and a downloadable test report.
Price & Value
While cheap options may be tempting, the cheapest product often skimp on quality or dosage.
Compare the cost per active microgram of K2 and per IU of D3, and factor in the number of servings per container. A slightly higher price is justified when it delivers clinically proven amounts and reliable purity.
Consumer Reviews & Reputation
User feedback reveals real‑world performance and any recurring issues such as unpleasant taste or gastrointestinal upset.
Prioritize brands with a solid track record of positive reviews across multiple retail platforms and a responsive customer service team. Consistent high ratings often correlate with product efficacy and manufacturing consistency.
By weighing purity, dosage, absorption aids, third‑party testing, cost per active dose, and real‑world reviews, you can select a K2‑D3 supplement that reliably supports bone health and cardiovascular function. Choose the product that best aligns with these criteria for optimal, long‑term results.
Frequently Asked Questions
What defines a top‑rated K2 + D3 supplement?
MK‑7 K2 (≥100 µg) + 1000–2000 IU D3, oil base, third‑party tested, no fillers.
When is the best time to take it?
With a fatty meal; the fat improves absorption of both vitamins.
Are there any safety limits?
Stay ≤200 µg K2 and ≤4000 IU D3 daily unless a doctor advises higher.
Conclusion
Choosing the right K2 + D3 supplement ultimately comes down to a few core principles: a balanced ratio that mirrors the body’s natural synergy, high‑quality, bioavailable forms of each vitamin, and transparent, third‑party testing that guarantees purity.
Look for products that prioritize sustainable sourcing and clear dosing instructions, making it easy to maintain consistent intake without guesswork.
When these factors align, you’ll support bone health, cardiovascular function, and immune resilience more effectively.
As always, pairing supplementation with a nutrient‑rich diet and consulting a healthcare professional ensures you reap the full benefits while tailoring the regimen to your individual needs.
