DOSERANKEVIDENCE-BASED SUPPLEMENTS
DOSERANKEVIDENCE-BASED SUPPLEMENTS© 2026 DoseRank · Evidence-based supplements
Methodology·Outcomes·Categories
DOSERANKEVIDENCE-BASED SUPPLEMENTS
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  1. Search
  2. ·Outcomes
  3. ·Platelets & clotting
  4. ·Coagulation status

Support healthy coagulation balance

View top productsTake the 60-sec quizGet the reportSee methodology

What this outcome means

Coagulation status describes how readily your blood clots, balancing protection against bleeding with the risk of unwanted clots. On DoseRank it maps to a defined health outcome built from human studies on clotting-time tests like PT and aPTT, platelet measures, and fibrinogen levels – data sourced from open sources and specialized resources. DoseRank is not medical advice.

Who it's for

Clot-prone historiesPeople with a past clot or family clotting tendency.
Easy bruising or bleedingBruises and bleeds that seem to come too easily.
Lab-monitored patientsThose whose clotting numbers are checked regularly.
Stack buildersAlready taking supplements such as Vitamin K and want the dose right.

Evidence level

92Strong

Vitamin K – has strong public evidence. DoseRank looks at both evidence quality and formula fit. A DoseFit Score of 67 means this product's ingredient forms and doses are close to what was used in the studies behind this ranking - DoseRank weights each product ingredient.

Best ingredients

Vitamin K is the best supported ingredient signal for this outcome.

Dose partly matchedDoseFit 67

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: In range: Vitamin K 200 mcg vs 90-5000 mcg.

ProcessedProcessedEvery product DoseRank ingested and scored for this outcome, before any availability or relevance filtering.
1k
AvailableAvailableOf the products processed, how many are currently in stock and purchasable from a tracked retailer.
1k
IngredientsIngredientsNumber of relevant ingredients for this outcome. Each is judged on its own evidence and dose fit score.
2
BrandsBrandsNumber of unique brands represented across the ranked products for this outcome.
154
CoverageCoverageHigher is betterShare of the relevant, in-stock market DoseRank has structured data for. Higher coverage means fewer blind spots in the ranking.
100%

How to read the scores

What every metric means

Each score is 0–100. Higher is better for every metric below.
CompositeThe overall DoseRank score — a weighted blend of clinical strength, evidence, dose fit, trust and value.Higher is better
ClinicalHow strongly the formula's ingredients and doses match what clinical studies used for this outcome.Higher is better
EvidenceHow much published human research backs the formula's key ingredients for this outcome — both how many studies exist and how strong they are.Higher is better
ValueHow the price per serving compares with similar products for this outcome — 50 is the typical price, higher means better value for your money.Higher is better
TrustHow well customers rate this product, with extra weight given to ratings backed by a large number of reviews.Higher is better
PopularityHow strongly this product sells compared with the other ranked products for this outcome.Higher is better

This legend covers the scores on this page — for data sources, scoring weights, and limits, read the full methodology →

Not sure which is right for you?

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A saved, shareable breakdown: your matched products, dose math, interaction flags to discuss with a clinician, and a price-tracked stack you can revisit.

Questions

Frequently asked

Each product gets a composite score blending clinical strength, evidence, dose fit, trust and value. The #1 on the DoseRank tab has the highest composite; the other tabs re-rank the same products by Value, Trust, or Popularity. Placement is never paid.

DoseRank is not medical advice. Scores summarize publicly available product and study data to help you compare options; they are not a diagnosis or a treatment recommendation. If you are pregnant, breastfeeding, taking medication, or managing a health condition, consult a qualified clinician before starting any supplement. Retailer links may be affiliate links and DoseRank may earn a commission — rankings and placement are determined by the scoring model only, never by payment from a brand. Statements about supplements have not been evaluated by the FDA. Products are not intended to diagnose, treat, cure, or prevent any disease.

Relevant ingredients

Which ingredient types matter for coagulation statusOpen to see which ingredient types matter for coagulation status

1k products across 1 ingredient types — open to filter the ranking.
Use types to filter ranked products

Vitamins

1k products

Essential micronutrients the body can't make in sufficient amounts. Fat-soluble ones (A, D, E, K) store up; water-soluble ones need regular topping-up.

Typical: ,

Top decision cards

Best products for coagulation status

Ranking by · Composite outcome score

Best overall — the composite outcome score.

Top pick · DoseRank

Why this ranks #1 for coagulation status

#1

Thorne, Vitamin D + K2, 1 fl oz (30 ml)

Thorne$0.05 / serving4.9 · 31,996Available now

Why this ranks here

  • Evidence fitVitamin K is the strongest evidence signal for this outcome.
  • Dose fitVitamin K at 200 mcg lands inside the studied 90-5000 µg window.
  • Price / serving$0.05 per serving — low price tier for this outcome.
  • AvailabilityIn stock across major retailers; 99% availability confidence.
  • TrustStrong trust signals — consistently high marks from verified buyer ratings.

Trade-offs

Dose fit is the weak spot on this list

The numbers

87
87
67
94

200 mcgIn rangeinside the studied 90-5000 µg window
Compare top 3Product dataOpen at retailer

The rest of the ranking · DoseRank

Top 10 ranked products
#ProductPrice

Keep exploring

Related outcomes

Platelet functionPlatelet activity relevant to clotting and bleeding.
Last updated Jun 12, 2026

DoseRank is not medical advice. Scores summarize publicly available product and study data to help you compare options; they are not a diagnosis or a treatment recommendation. If you are pregnant, breastfeeding, taking medication, or managing a health condition, consult a qualified clinician before starting any supplement. Retailer links may be affiliate links and DoseRank may earn a commission — rankings and placement are determined by the scoring model only, never by payment from a brand. Statements about supplements have not been evaluated by the FDA. Products are not intended to diagnose, treat, cure, or prevent any disease.

Comparison preview

Compare the top 3, side by side

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The top three for the current view — free to read, no account. Saving, exporting, alerts and the full filter set unlock once you sign in or build a personal report.

Metric
#1Thorne, Vitamin D + K2, 1 fl oz (30 ml)Thorne · $0.05/serving
#2Life Extension, Super K, 90 SoftgelsLife Extension · $0.23/serving
#3Life Extension, Vitamins D and K with Sea-Iodine™, 60 CapsulesLife Extension · $0.27/serving
Composite878686
Clinical878989
Dose fit676969
Value947773
Popularity999899
Key dosages & price · raw values
200 mcg—2100 mcgHighest
Rating
Number of ratings
Price
Price per serving
Serving size
Trust

See more metrics for every product.

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Unlocks with accountFull list of ingredients and dosagesFull list of metricsPrice-drop alertsRanking-changes alertsPersistent stack