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NOW Foods MK-7 Vitamin K-2 vs Futurebiotics K2 + D3 Extra Strength

Side-by-side comparison of scores, ingredients, prices and real customer feedback for NOW Foods MK-7 Vitamin K-2 and Futurebiotics K2 + D3 Extra Strength.

Last verified: 28 Mar 2026 · Based on 100 reviews

83.0
Score Summary

NOW Foods MK-7 Vitamin K-2 scores 83.0/100 vs Futurebiotics K2 + D3 Extra Strength at 77.0/100. NOW Foods MK-7 Vitamin K-2 wins on ingredient quality, side effects, certifications. Futurebiotics K2 + D3 Extra Strength is stronger on value for money.

NOW Foods MK-7 Vitamin K-2 vs Futurebiotics K2 + D3 Extra Strength: What Does the Data Say?

The main split between these two is what problem you're trying to solve. NOW Foods is a standalone 100mcg MK-7 capsule using MenaQ7® — a branded, clinically studied form that outperforms generic MK-7 in bioavailability. It scores 83/100 and costs £24.23. Futurebiotics pairs K2 MK-7 with 10,000 IU of D3 cholecalciferol in a single capsule at £14.72, a therapeutic dose designed to correct a diagnosed deficiency, not maintain adequate levels.

Pick NOW Foods if you're already on a vitamin D3 supplement and just need K2 added to your routine. Most MK-7 is natto-derived and soy-based, so the soy-free formulation is a genuine advantage for anyone avoiding soy. The ingredient quality score of 88/100 reflects that clean formula.

Futurebiotics suits someone who's had a blood test, confirmed deficiency, and wants one capsule to handle both. The 10,000 IU daily dose is not appropriate without periodic testing — vitamin D toxicity is a real risk over months. Neither product carries independent third-party certification; both rely on in-house testing, which is worth factoring in if label accuracy matters to you.

How Do the Scores Compare?

MK-7 Vitamin K-2, 100 mcg, ...
Vitamin K2 + D3, Extra Stre...
MK-7 Vitamin K-2, 100 mcg, 120 Veg Capsules
MK-7 Vitamin K-2, 100 mcg, ...
NOW Foods
Vitamin K2 + D3, Extra Strength, 120 Capsules
Vitamin K2 + D3, Extra Stre...
Futurebiotics
Overall Score 83.0 77.0
Effectiveness 82.0/100
Best
82.0/100
Best
Ingredient Quality 88.0/100
Best
80.0/100
Value for Money 86.0/100 87.0/100
Best
Side Effects 92.0/100
Best
91.0/100
Certifications 60.0/100
Best
37.0/100
Best Price £24.72 iHerb → £15.02 iHerb →
Cheapest
Form None None
Dose None None
Third-Party Tested ✗ No ✗ No
Reviews Analysed 50 50

MK-7 Vitamin K-2, 100 mcg, 120 V...

Pros

  • Uses MenaQ7® — a patented MK-7 form with published clinical trial data, not generic menaquinone-7
  • 100 mcg is the evidence-based daily dose for bone mineralisation and vascular calcium management
  • Small capsules consistently praised across reviews as tasteless, odourless, and easy to swallow
  • Soy-free despite K2 typically being derived from natto fermentation — clean excipient list too

Cons

  • Not independently third-party tested per product specs — quality relies on NOW Foods' own GMP processes
  • Requires medical consultation for anyone taking anticoagulants such as warfarin or heparin

Best For

Anyone supplementing vitamin D3 at doses above 2000 IU daily who wants to manage calcium distribution Adults over 40 focused on long-term bone density and arterial health People who need a soy-free K2 source
View full review →

Vitamin K2 + D3, Extra Strength,...

Pros

  • 10,000 IU suits people with confirmed deficiency — multiple reviewers specifically switched from 5,000 IU after failing to hit target levels
  • K2 as MK-7 (120 mcg) is the superior form: long half-life means once-daily dosing works, and the dose sits in the effective range used in studies
  • Clean excipient list — microcrystalline cellulose, cellulose capsule, magnesium stearate, silicon dioxide — no soy, gluten, or fillers reviewers flag
  • 120 capsules gives four months at daily use; reviewers consistently cite strong value versus pharmacy pricing

Cons

  • No independent third-party testing — label says 'Lab Tested' but this is self-declared; specs confirm no external verification
  • 10,000 IU is not a maintenance dose — requires blood testing before and during use; one reviewer explicitly notes skipping this step and risking over-supplementation
  • D3 sourced from lanolin (standard cholecalciferol) — not suitable for vegans despite the cellulose capsule shell
  • K2 form is unbranded MK-7, not a patented ingredient like MenaQ7 — potency and purity can vary without third-party confirmation

Best For

Adults with blood-confirmed vitamin D deficiency who haven't responded to 5,000 IU doses People in northern climates or desk-bound lifestyles with minimal sun exposure Anyone seeking a combined bone and calcium metabolism formula without paying for a premium brand Budget-conscious buyers who want MK-7 specifically rather than cheaper MK-4 products
View full review →

Score Breakdown: NOW Foods MK-7 Vitamin K-2 vs Futurebiotics K2 + D3 Extra Strength

NOW Foods MK-7 Vitamin K-2 Winner 83.0/100

The MenaQ7® form sets this apart from budget K2 alternatives.

Effectiveness
MK-7 Vitamin K-2..
82.0/100
Vitamin K2 + D3,..
82.0/100
Ingredient Quality
MK-7 Vitamin K-2..
88.0/100
Vitamin K2 + D3,..
80.0/100
Value for Money
MK-7 Vitamin K-2..
86.0/100
Vitamin K2 + D3,..
87.0/100
Side Effects
MK-7 Vitamin K-2..
92.0/100
Vitamin K2 + D3,..
91.0/100
Certifications
MK-7 Vitamin K-2..
60.0/100
Vitamin K2 + D3,..
37.0/100

What are the key differences?

NOW Foods MK-7 Vitamin K-2 is best for: Anyone supplementing vitamin D3 at doses above 2000 IU daily who wants to manage calcium distribution, Adults over 40 focused on long-term bone density and arterial health
Futurebiotics K2 + D3 Extra Strength is best for: Adults with blood-confirmed vitamin D deficiency who haven't responded to 5,000 IU doses, People in northern climates or desk-bound lifestyles with minimal sun exposure

Frequently Asked Questions

Which is better, NOW Foods MK-7 Vitamin K-2 or Futurebiotics K2 + D3 Extra Strength?
NOW Foods MK-7 Vitamin K-2 scores 83.0/100 overall while Futurebiotics K2 + D3 Extra Strength scores 77.0/100. NOW Foods MK-7 Vitamin K-2 comes out ahead, scoring higher on effectiveness (82.0 vs 82.0). NOW Foods MK-7 Vitamin K-2 is best suited for Anyone supplementing vitamin D3 at doses above 2000 IU daily who wants to manage calcium distribution and Adults over 40 focused on long-term bone density and arterial health. Futurebiotics K2 + D3 Extra Strength is better for Adults with blood-confirmed vitamin D deficiency who haven't responded to 5,000 IU doses and People in northern climates or desk-bound lifestyles with minimal sun exposure.
Is NOW Foods MK-7 Vitamin K-2 worth the price compared to Futurebiotics K2 + D3 Extra Strength?
NOW Foods MK-7 Vitamin K-2 costs £24.72 while Futurebiotics K2 + D3 Extra Strength is £15.02. For value, NOW Foods MK-7 Vitamin K-2 scores 86.0/100 vs Futurebiotics K2 + D3 Extra Strength's 87.0/100. Futurebiotics K2 + D3 Extra Strength delivers better value relative to its quality.
Which has fewer side effects?
NOW Foods MK-7 Vitamin K-2 scores 92.0/100 for side effects (higher means fewer reported issues) while Futurebiotics K2 + D3 Extra Strength scores 91.0/100. Reviewers report fewer side effects with NOW Foods MK-7 Vitamin K-2. For certification and testing, NOW Foods MK-7 Vitamin K-2 scores 60.0/100 vs Futurebiotics K2 + D3 Extra Strength's 37.0/100. Always consult a healthcare professional before starting any supplement.

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Disclaimer: AIScored provides data-driven comparisons based on publicly available reviews. This is not medical advice. Affiliate links may earn us a commission at no extra cost to you.

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