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DOSERANKEVIDENCE-BASED SUPPLEMENTSFull analysis

The short answer · Bleeding tendency

Take vitamin k1 (phylloquinone) for bleeding tendency. This is the one to buy.

Codeage, A, D, K Vitamins+, 180 Vegetable Capsules
1

Codeage, A, D, K Vitamins+, 180 Vegetable Capsules

4.8· 1,135 ratings· $0.22/serving

DoseRank score82

Vitamin K1 (Phylloquinone) 1000 mcg — inside the studied 1000-10000 mcg window

Of 3,291 products scored for Bleeding tendency, Codeage, A, D, K Vitamins+, 180 Vegetable Capsules ranks #1 with a DoseRank score of 82. Vitamin K1 (Phylloquinone) is the strongest evidence signal for this outcome.

View on iHerb— $0.22/sv60-sec quiz instead
Cheaper alternative$0.18 per servingNature's Life, Revitalizing Vitamin K, 1,000 mcg, 50 VegCaps

Retailer links may be affiliate links. Rankings and placement are never paid.

The form“Why Vitamin K1 (Phylloquinone) — not Vitamin K or Vitamin E?”Evidence Strong evidence

Vitamin K1 (Phylloquinone) is the strongest evidence signal for this outcome.

  • Vitamin K1 (Phylloquinone)The pick

    Strong evidence · 1000 mcg

    The main dietary form of vitamin K, abundant in leafy greens; central to liver-based clotting-factor synthesis, with weaker bone and cardiovascular evidence than K2 forms.

  • Vitamin K

    Strong evidence · 24 mg

    Fat-soluble vitamin found as K1 (plant phylloquinone) and K2 (menaquinones); essential for blood-clotting factors and directing calcium to bone.

  • Vitamin E

    Moderate evidence · 6 mg

    Fat-soluble antioxidant vitamin found as tocopherols and tocotrienols; alpha-tocopherol is the most studied, shielding cell membranes from lipid peroxidation.

Buy the #1 pick
The dose“Is the dose actually effective?”Dose fit 67

Vitamin K1 (Phylloquinone) at 1000 mcg lands inside the studied 1000-10000 mcg window.

Vitamin K1 (Phylloquinone)

Studied window 1000-10000 mcg · this pick 1000 mcg

900 mcg
125 mcg
900 mcg
900 mcg
The ranking“Why should I trust this pick?”Trust 78

Solid trust signals from buyer ratings, with room to grow. Each product gets a DoseRank score blending clinical strength, evidence, dose fit, trust and value. Retailer links may be affiliate links — the scoring model decides placement, never payment from a brand.

  • 3,291 products scored
  • Never paid placement
  • Evidence level: Strong · 92
  • 313 brands
  • 16 ingredients
See the full analysis — every score, every productHow the ranking works
The price“Can I do better than $0.22 a serving?”Value 50

$0.22 per serving — high price tier for this outcome. The cheapest ranked pick here is $0.18 per serving.

  • 3
    Nature's Life, Revitalizing Vitamin K, 1,000 mcg, 50 VegCapsScore 78 · $0.18/serving
    iHerb
  • 4
    KAL, Bone Meal, 250 TabletsScore 78 · $0.21/serving
    iHerb

Why not the absolute cheapest? The DoseRank score also weighs clinical strength, evidence, dose fit and trust — the very cheapest listings rarely hold up everywhere else.

Ready?

The #1 pick is $0.22 a serving.

Codeage, A, D, K Vitamins+, 180 Vegetable Capsules — in stock at a tracked retailer.

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Frequently asked

Codeage, A, D, K Vitamins+, 180 Vegetable Capsules ranks #1 for Bleeding tendency with a DoseRank score of 82. The score blends clinical strength, evidence, dose fit, trust signals and value across 3,291 products scored for this outcome.

Vitamin K1 (Phylloquinone) is the strongest evidence signal for this outcome.

Vitamin K1 (Phylloquinone) at 1000 mcg lands inside the studied 1000-10000 mcg window. DoseRank scores this product's dose fit at 67 out of 100.

Codeage, A, D, K Vitamins+, 180 Vegetable Capsules works out at $0.22 per serving. $0.22 per serving — high price tier for this outcome. The cheapest ranked pick here is $0.18 per serving.

No. Retailer links may be affiliate links, but rankings and placement are never paid. Every product is scored by the same public model, and the ranking is recomputed from the underlying product data rather than edited by hand.

Use rankings as research support

DoseRank rankings are informational and not medical advice. If you are pregnant, breastfeeding, using medications, or managing a health condition, ask a qualified clinician whether a supplement fits your situation. Stop use and report concerning adverse events to a clinician, the product maker, or the retailer.

Disclosure

Retailer links may be affiliate links. Rankings and placement are not paid placement.

Codeage, A, D, K Vitamins+, 180 Vegetable Capsules

$0.22/serving · ★ 4.8 · In stock

60-sec quizView on iHerb