Skip to content

Vitamin K2 + D3, Extra Strength, 120 Capsules vs Vitamin K2 MK-7, 100 mcg, 240 Capsules

Side-by-side comparison of scores, ingredients, prices and real customer feedback for Vitamin K2 + D3, Extra Strength, 120 Capsules and Vitamin K2 MK-7, 100 mcg, 240 Capsules.

Last verified: 07 Apr 2026 · Based on 100 reviews

77.0
Quick Answer

Vitamin K2 + D3, Extra Strength, 120 Capsules scores 77.0/100 vs Vitamin K2 MK-7, 100 mcg, 240 Capsules at 76.0/100. Vitamin K2 + D3, Extra Strength, 120 Capsules wins on effectiveness, ingredient quality, side effects. Vitamin K2 MK-7, 100 mcg, 240 Capsules is stronger on value for money and certifications.

How Do the Scores Compare?

Vitamin K2 + D3, Extra Stre...
Vitamin K2 MK-7, 100 mcg, 2...
Vitamin K2 + D3, Extra Strength, 120 Capsules
Vitamin K2 + D3, Extra Stre...
Futurebiotics
Vitamin K2 MK-7, 100 mcg, 240 Capsules
Vitamin K2 MK-7, 100 mcg, 2...
Nutricost
Overall Score 77.0 76.0
Effectiveness 82.0/100
Best
78.0/100
Ingredient Quality 80.0/100
Best
73.0/100
Value for Money 87.0/100 92.0/100
Best
Side Effects 91.0/100
Best
82.0/100
Certifications 37.0/100 42.0/100
Best
Best Price £14.72 iHerb → £14.71 iHerb →
Cheapest
Form None None
Dose None None
Third-Party Tested ✗ No ✗ No
Reviews Analysed 50 50

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 →

Vitamin K2 MK-7, 100 mcg, 240 Capsules

Pros

  • 240-capsule bottle makes this one of the cheapest per-serving K2 MK-7 options — repeatedly highlighted by reviewers as the primary buying reason
  • MK-7 form has a long half-life (~72 hours), making once-daily dosing genuinely effective rather than a convenience compromise
  • Small softgels with no taste or aftertaste — multiple reviewers with swallowing difficulties specifically flag this
  • Minimal ingredient list: MK-7, sunflower oil, gelatin capsule — no unnecessary fillers beyond the caramel capsule colouring

Cons

  • Gelatin capsules — not suitable for vegans or vegetarians
  • Caramel colouring in the capsule shell uses ammonia-based processing; flagged by at least one reviewer with multiple chemical sensitivities
  • One reviewer notes the brand does not publish isomer data — unclear what percentage is all-trans MK-7 (the active form) versus cis
  • Rare reports of heart palpitations and anxiety, particularly when combined with high-dose vitamin D3

Best For

Anyone already taking vitamin D3 who needs K2 to ensure calcium is deposited in bones rather than soft tissue Budget-conscious buyers wanting a long-lasting single-ingredient K2 supplement People who struggle with large capsules — the softgels are notably small Those who prefer buying D3 and K2 separately to control individual doses
View full review →

What does the data say about Vitamin K2 + D3, Extra... vs Vitamin K2 MK-7, 100 m...?

Vitamin K2 + D3, Extra Strength, 120 Capsules Winner 77.0/100

At 10,000 IU of cholecalciferol paired with 120 mcg of MK-7 menaquinone, this is a therapeutic-strength formula built for correcting deficiency rather than just maintaining levels.

Effectiveness
Vitamin K2 + D3,..
82.0/100
Vitamin K2 MK-7,..
78.0/100
Ingredient Quality
Vitamin K2 + D3,..
80.0/100
Vitamin K2 MK-7,..
73.0/100
Value for Money
Vitamin K2 + D3,..
87.0/100
Vitamin K2 MK-7,..
92.0/100
Side Effects
Vitamin K2 + D3,..
91.0/100
Vitamin K2 MK-7,..
82.0/100
Certifications
Vitamin K2 + D3,..
37.0/100
Vitamin K2 MK-7,..
42.0/100

What are the key differences?

Vitamin K2 + D3, Extra .. 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
Vitamin K2 MK-7, 100 mc.. is best for: Anyone already taking vitamin D3 who needs K2 to ensure calcium is deposited in bones rather than soft tissue, Budget-conscious buyers wanting a long-lasting single-ingredient K2 supplement

Frequently Asked Questions

Which is better, Vitamin K2 + D3, Extra Strength, 120 Capsules or Vitamin K2 MK-7, 100 mcg, 240 Capsules?
Vitamin K2 + D3, Extra Strength, 120 Capsules scores 77.0/100 overall while Vitamin K2 MK-7, 100 mcg, 240 Capsules scores 76.0/100. Vitamin K2 + D3, Extra Strength, 120 Capsules comes out ahead, scoring higher on effectiveness (82.0 vs 78.0). Vitamin K2 + D3, Extra Strengt is best suited 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. Vitamin K2 MK-7, 100 mcg, 240 is better for Anyone already taking vitamin D3 who needs K2 to ensure calcium is deposited in bones rather than soft tissue and Budget-conscious buyers wanting a long-lasting single-ingredient K2 supplement.
Is Vitamin K2 + D3, Extra Strength, 120 Capsules worth the price compared to Vitamin K2 MK-7, 100 mcg, 240 Capsules?
Vitamin K2 + D3, Extra Strength, 120 Capsules costs £14.72 while Vitamin K2 MK-7, 100 mcg, 240 Capsules is £14.71. For value, Vitamin K2 + D3, Extra Strength, 120 Capsules scores 87.0/100 vs Vitamin K2 MK-7, 100 mcg, 240 Capsules's 92.0/100. Vitamin K2 MK-7, 100 mcg, 240 Capsules delivers better value relative to its quality.
Which has fewer side effects?
Vitamin K2 + D3, Extra Strength, 120 Capsules scores 91.0/100 for side effects (higher means fewer reported issues) while Vitamin K2 MK-7, 100 mcg, 240 Capsules scores 82.0/100. Reviewers report fewer side effects with Vitamin K2 + D3, Extra Strength, 120 Capsules. For certification and testing, Vitamin K2 + D3, Ext scores 37.0/100 vs Vitamin K2 MK-7, 100's 42.0/100. Always consult a healthcare professional before starting any supplement.

Related Product Comparisons

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.

Feedback & Suggestions

Spotted an issue? Wrong price, incorrect data, or something else off? Let us know and we'll fix it.

Missing a product you'd like us to review? Tell us the product name and we'll consider adding it.