Best Vitamin D3 + K2 Supplement 2026
Quick summary: Pick: Sports Research D3 + K2 (9.5/10). Price: verify at publish time (September 16, 2026).
D3/K2 biology is plausible; outcome evidence is limited.
All four supply 5,000 IU D3 and need clinician guidance.
How We Evaluated
- MK-7 and bone: PMID 23525894. Less bone decline at some sites.
- Arteries: PMID 25694037. Surrogate improvement, not clinical events.
- Fractures: PMID 29677308. No clear fracture benefit without deficiency.
I compared labels; prices are pending.
Top 4 Vitamin D3 + K2 Supplements of 2026
1. Sports Research Vegan Vitamin D3 + K2, 60 softgels
EDITOR’S CHOICERating: 9.5/10
What you get: D3 5,000 IU; MK-7 100 mcg.
Value and quality context: verify at publish time.
Vegan oil format; high D3 needs supervision.
Vegan does not mean suitable for routine use.
- Pros: Vegan format; MK-7 disclosed; MCT carrier.
- Cons: High D3 dose; K-drug interaction.
2. Nature Made Vitamin D3 + K2, 30 softgels
BEST ALL-TRANSRating: 9.2/10
What you get: D3 5,000 IU; MK-7 100 mcg.
Value and quality context: verify at publish time.
All-trans MK-7; high D3 needs supervision.
- Pros: All-trans MK-7; Oil carrier; Clear dose.
- Cons: High D3 dose; Gelatin and soy.
3. NOW Foods Vitamin D3 + K2 Chewable, 90 tablets
BEST CHEWABLERating: 9.0/10
What you get: D3 5,000 IU; MK-7 90 mcg.
Value and quality context: verify at publish time.
Named MK-7; adult-only, high-dose D3.
- Pros: Chewable format; Named MK-7; 90 tablets.
- Cons: Adult-only; High D3 dose.
4. MegaFood Vitamin D3 and K2, 60 capsules
BEST MULTI-KRating: 8.8/10
What you get: D3 5,000 IU; K1 120, MK-7 80 mcg.
Value and quality context: verify at publish time.
Extra K1; MK-7 falls below 90–200 mcg.
- Pros: Both K forms stated; Capsule format; Clear amounts.
- Cons: High D3 dose; 80 mcg MK-7.
Comparison Table
| Product | Form | Dose per serving | Count | Approximate price | Best for |
|---|---|---|---|---|---|
| Sports Research | Softgel | D3 5,000 IU; MK-7 100 mcg | 60 softgels | verify at publish time | Vegan format |
| Nature Made | Softgel | D3 5,000 IU; MK-7 100 mcg | 30 softgels | verify at publish time | All-trans label |
| NOW D3 + K2 | Chewable | D3 5,000 IU; MK-7 90 mcg | 90 tablets | verify at publish time | Adult chewable |
| MegaFood | Capsule | D3 5,000 IU; K1 120, MK-7 80 mcg | 60 capsules | verify at publish time | Multiple K forms |
How to Choose a Vitamin D3 + K2 Supplement
D3 aids calcium absorption; K activates proteins. Combination outcome evidence is limited.
Maintenance often uses 1,000–2,000 IU D3. The 4,000 IU adult upper limit is not a target.
All K forms interact with warfarin/vitamin-K antagonists: clinician management is essential.
Check IU/MK-7 and take with fat. Excess D risks hypercalcemia; kidney disease, calcium, or thiazides need review.
Read vitamin D3 guide and vitamin K2 guide.
This article is for information only and is not medical advice. Supplements can interact with medicines. Talk with a clinician before starting anything new, especially if you are pregnant, managing a condition, or taking prescription drugs. Prices and formulations change; the label is the final authority.
