Is a higher dose always better?

No. Dose-fit rewards landing inside the range studied for the outcome — over-dosing (common with melatonin) or under-dosing both lower the score. The goal is the effective dose, not the biggest number.

What does the Value score mean?

The Value score compares a product's price per serving with clinically relevant products ranked for the same outcome. A score of 50 is the typical price; above 50 means better value than typical, while below 50 means the product costs more than typical. It is a 0–100 value signal, not a percentile.

Why is the cheapest product not #1?

Cost is only one input. The cheapest pick here is a citrate form with weaker absorption and a stock-risk flag, so it leads on Value-for-cost but trails on the composite that also weighs evidence, dose fit and availability.

Are these affiliate links?

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.

Is this medical advice?

No. DoseRank summarizes evidence to help you choose; it is not a substitute for a clinician, especially if you are pregnant, breastfeeding, on medication, or managing a health condition.

Support healthy coagulation balance

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 K1 (Phylloquinone) and want the dose right.

Evidence level

92Strong

Vitamin K1 (Phylloquinone) – 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 K1 (Phylloquinone) 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 K1 (Phylloquinone) 1000 mcg vs 1000-10000 mcg.

Processed

557

Available

557

Ingredients

Brands

Coverage

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 →

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Get a personal report

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.

Support healthy coagulation balance

What this outcome means

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 K1 (Phylloquinone) and want the dose right.

Evidence level

92Strong

Best ingredients

Vitamin K1 (Phylloquinone) 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 K1 (Phylloquinone) 1000 mcg vs 1000-10000 mcg.

Processed

557

Available

557

Ingredients

Brands

Coverage

100%

Relevant ingredients

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

495 products across 1 ingredient types — open to filter the ranking.

Use types to filter ranked products

Vitamins

495 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

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

Codeage$0.22 / serving4.8 · 1,130Available now

Also helps with

Vitamin K status

Arterial stiffness

Bone turnover markers

Why this ranks here

Evidence fitVitamin K1 (Phylloquinone) is the strongest evidence signal for this outcome.
Dose fitVitamin K1 (Phylloquinone) at 1000 mcg lands inside the studied 1000-10000 mcg window.
Price / serving$0.22 per serving — mid price tier for this outcome.
AvailabilityIn stock across major retailers; 99% availability confidence.
TrustSolid trust signals from buyer ratings, with room to grow.

The numbers

1000 mcgIn rangeinside the studied 1000-10000 mcg window

900 mcg

125 mcg

900 mcg

Compare top 3 Product data Open at retailer

The rest of the ranking · DoseRank

Top 10 ranked products

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Garden of Life, Organics, Women's Multi 40+, 120 Vegan Tablets

Garden of LifeClinical87Dose fit67Popularity84$0.97/ serving

Garden of Life, Vitamin Code, RAW Calcium, 120 Vegetarian Capsules

Garden of LifeClinical87Dose fit67Popularity91$1.18/ serving