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.

Improve bone turnover markers

What this outcome means

Bone turnover markers are blood and urine signals that show how fast your skeleton is building up and breaking down bone tissue. On DoseRank it maps to a defined health outcome built from human studies on formation markers like P1NP and osteocalcin and resorption markers like CTX and NTX – data sourced from open sources and specialized resources. DoseRank is not medical advice.

Who it's for

Post-menopausal womenNavigating the faster bone changes that follow menopause.

Tracking bone healthPeople monitoring lab signals of how their skeleton is remodeling.

Older adultsAging bodies where formation and resorption can drift out of balance.

Stack buildersAlready taking supplements such as Vitamin K2 (Menaquinone-7, MK-7) and want the dose right.

Evidence level

92Strong

Vitamin K2 (Menaquinone-7, MK-7) – has strong public evidence. DoseRank looks at both evidence quality and formula fit. A DoseFit Score of 69 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 K2 (Menaquinone-7, MK-7) is the best supported ingredient signal for this outcome.

Dose partly matchedDoseFit 69

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: In range: Vitamin K2 (Menaquinone-7, MK-7) 120 mcg vs 90-360 mcg.

Processed

Available

Ingredients

Brands

286

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.

Improve bone turnover markers

What this outcome means

Who it's for

Post-menopausal womenNavigating the faster bone changes that follow menopause.

Tracking bone healthPeople monitoring lab signals of how their skeleton is remodeling.

Older adultsAging bodies where formation and resorption can drift out of balance.

Stack buildersAlready taking supplements such as Vitamin K2 (Menaquinone-7, MK-7) and want the dose right.

Evidence level

92Strong

Best ingredients

Vitamin K2 (Menaquinone-7, MK-7) is the best supported ingredient signal for this outcome.

Dose partly matchedDoseFit 69

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: In range: Vitamin K2 (Menaquinone-7, MK-7) 120 mcg vs 90-360 mcg.

Processed

Available

Ingredients

Brands

286

Coverage

100%

Relevant ingredients

Which ingredient types matter for bone turnover markersOpen to see which ingredient types matter for bone turnover markers

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 bone turnover markers

Ranking by · Composite outcome score

Best overall — the composite outcome score.

Top pick · DoseRank

Why this ranks #1 for bone turnover markers

California Gold Nutrition, Vitamin D3 + K2 as MK-7, 180 Veggie Capsules

California Gold Nutrition$0.08 / serving4.8 · 35,259Available now

Also helps with

Vitamin K status

Arterial stiffness

Vascular function

Why this ranks here

Evidence fitVitamin K2 (Menaquinone-7, MK-7) is the strongest evidence signal for this outcome.
Dose fitVitamin K2 (Menaquinone-7, MK-7) at 120 mcg lands inside the studied 90-360 mcg window.
Price / serving$0.08 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.

The numbers

120 mcgIn rangeinside the studied 90-360 mcg window

125 mcg

Compare top 3 Product data Open at retailer

The rest of the ranking · DoseRank

Top 10 ranked products

Nutricost, Vitamin K2 MK-7, 100 mcg, 240 Softgels

NutricostClinical87Dose fit68Popularity99$0.07/ serving

Micro Ingredients, Vitamin K2, MK-7, 200 mcg, 300 Softgels

Micro IngredientsClinical88Dose fit76Popularity91$0.07/ serving

Metabolic Nutrition, Vitamin D3 + K2, 90 Capsules

Metabolic NutritionClinical88Dose fit76Popularity89$0.11/ serving

Micro Ingredients, Vitamin D3 & K2, 300 Softgels

Micro IngredientsClinical88Dose fit76Popularity96$0.10/ serving

Nutricost, Vitamin K2 + Vitamin D3, 120 Softgels

NutricostClinical87Dose fit68Popularity98$0.11/ serving

NOW Foods, Liquid D-3 & MK-7, Mint, 1 fl oz (30 ml)

NOW FoodsClinical87Dose fit68Popularity91$0.11/ serving

NOW Foods, Mega D3 & MK-7, 120 Capsules

NOW FoodsClinical88Dose fit74Popularity99$0.22/ serving

Futurebiotics, Vitamin K2 + D3 , 120 Capsules

FuturebioticsClinical87Dose fit67Popularity99$0.13/ serving

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

CodeageClinical89Dose fit94Popularity84$0.22/ serving