MK-7 90 mcg

MK-7 90 mcg

Jarrow Formulas4.8 (6,321 ratings)
Format:Softgel Quantity: 120 Softgel(s) · 120 servings
Goals

Product analysis

88 out of 100

MK-7 90 mcg offers good value for vitamin K to support proteins involved in normal bone function.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality100

MK-7 is a favourable vitamin K form choice. Its clear identification gives confidence about which form you are buying.

Ingredient Transparency100

The vitamin K amount and MK-7 form are both clear. That makes comparison with other vitamin K supplements straightforward.

Value For Money100

The MK-7 serving offers very good value. Its cost is appealing for someone specifically seeking this vitamin K form.

Customer Satisfaction92

Customer feedback is very positive across several thousand ratings. The large review base gives confidence in satisfaction rather than proof of bone benefits.

Product Focus26

A single nutrient keeps the supplement focused, with its clearest role in activating proteins involved in bone. Broader cardiovascular benefits remain unclear, and bone outcomes have been mixed.

Format
Softgel
Container
120 Softgel(s)
Per serving
$0.25
Customer rating
4.8 · 6,321 ratings
Report analysis

Goals

Heart Health
Impact
Limited evidence
F Ingredient FitF PathwaysF EvidenceF Formulation Logic
Vitamin K · 90 mcg
Study evidence
Vitamin K Mixed 62 studies
Bone Health
Impact
High effect
B Ingredient FitD- PathwaysA+ EvidenceA+ Formulation Logic
Vitamin K · 90 mcg

Vitamin K as MK-7 helps activate proteins involved in bone. The 90 mcg serving is below the 180 mcg daily preparation used in one three-year trial with favorable bone-density findings in postmenopausal women. Other supplied trial results were mixed, so this does not establish general fracture prevention. The formula's contribution is concentrated in bone-protein activation.

How this product is rated for Bone Health

Ingredient fit76

The identified MK-7 form gives the formula a focused connection to bone-protein activation.
Goal fit
The identified MK-7 form gives the formula a focused connection to bone-protein activation.
Dose adequacy
90 mcg per serving contributes below the 180 mcg daily exposure used in the favorable postmenopausal trial.

Pathways40

MK-7 contributes through activation of bone-related proteins. Bone-protein activation is the only substantially represented role.
Depth
MK-7 contributes through activation of bone-related proteins.
Breadth
Bone-protein activation is the only substantially represented role.

Evidence98

MK-7 has limited preparation-specific bone-density evidence in postmenopausal women, with mixed results across trials.
Evidence strength
MK-7 has limited preparation-specific bone-density evidence in postmenopausal women, with mixed results across trials.
Studied preparation
The counted ingredients match the preparations accepted in the saved comparison; this does not establish fracture prevention.

Formulation logic100

The counted ingredients can contribute independently or have their required partner present.
Partner coverage
The counted ingredients can contribute independently or have their required partner present.
Conflicts
No configured ingredient conflict was identified.
Effective doses
All counted ingredients have known amounts that meet the comparison's inclusion threshold.
Study evidence
Vitamin K Supportive 78 studies
Impact
Limited evidence
F Ingredient FitF PathwaysF EvidenceF Formulation Logic
Vitamin K · 90 mcg

MK-7 90 mcg lists 90 mcg vitamin K as natural MK-7, but the available label details do not establish the exact preparation used in studies. That leaves its possible link to arterial-stiffness markers unclear; the information does not show that vitamin K is absent or ineffective.

How this product is rated for Cardiovascular Support

Ingredient fit35

The label names natural MK-7, which relates to arterial-stiffness markers, but its exact preparation identity remains unresolved.
Goal fit
Vitamin K could relate to arterial-stiffness markers, but the named form is not confirmed as the studied MK-7 preparation.
Dose adequacy
The label lists 90 mcg vitamin K, but its form must be clear before that amount can be compared with studied MK-7.

Pathways0

The possible pathway is arterial stiffness, but the product details do not establish a studied MK-7 form.
Depth
No pathway has established coverage because the label's MK-7 preparation is not confirmed.
Breadth
No target pathway has enough established coverage with the declared form unresolved.

Evidence0

Studies concern a specific MK-7 preparation; the available label details do not confirm that identity.
Evidence strength
No ingredient reaches an evidence-linked amount in a confirmed studied form; this does not show ineffectiveness.
Studied preparation
The label's natural MK-7 wording does not establish the exact preparation used in studies.

Formulation logic35

No ingredient has an established cardiovascular contribution here; the available facts show no conflict.
Partner coverage
The studied preparation is unresolved, so its need for a partner cannot be confirmed.
Conflicts
No caffeine, stimulant, or high-sodium issue appears in the available ingredient facts.
Effective doses
The 90 mcg amount cannot be compared with studied MK-7 exposures until its exact form is established.
Study evidence
Vitamin K Supportive 40 studies

Ingredients

IngredientAmount per servingScore
Vitamin K2 (as natural MK-7)
90 mcg 93
Gluten Free Adults 18–50 Dairy Free
Report overview
B+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value
A serving provides 90 mcg of vitamin K2 as MK-7, a form that can remain in circulation longer than other forms. The whole-product serving costs about $0.26.
How this ingredient is rated

Active Ingredient Quality & Bioavailability82

Vitamin K2 is supplied as MK-7, a form that can remain in circulation longer than other forms. Its trans isomer is not specified in the saved information.
Vitamin K Form (MK-7 vs. MK-4 vs. K1)
MK-7 is a vitamin K2 form that can remain in circulation longer than other forms.
MK-7 Isomer Disclosure
The saved information does not specify whether the MK-7 is the trans form.

Dose, Safety & Label Transparency100

A serving provides 90 mcg of MK-7, with both the amount and subtype identified.
Vitamin K2 (MK-7) Dosage Efficacy
The serving provides 90 mcg of MK-7.
Form and Subtype Transparency
The saved information identifies both the vitamin K amount and its MK-7 subtype.

Value100

The whole product costs about $0.26 per serving, a low price in the evaluation.
Price per Effective MK-7 Serving
The whole product costs about $0.26 per serving, a low price in the evaluation.
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Vitamin K and the prevention of fractures: systematic review and meta-analysis of randomized controlled trials.
    Cockayne S; Adamson J; Lanham-New S; Shearer MJ; Gilbody S; Torgerson DJ · Archives of internal medicine · 2006
    Meta-analysis13 studies pooledBone Health forVitamin K
  2. Three-year low-dose menaquinone-7 supplementation helps decrease bone loss in healthy postmenopausal women.
    Knapen MH; Drummen NE; Smit E; Vermeer C; Theuwissen E · Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2014
    Randomized trial244 participantsBone Health forVitamin K
  3. Effect of combined administration of vitamin D3 and vitamin K2 on bone mineral density of the lumbar spine in postmenopausal women with osteoporosis.
    Iwamoto J; Takeda T; Ichimura S · Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association · 2001
    Randomized trial92 participantsBone Health forVitamin K
  4. Efficacy and safety of vitamin K2 for postmenopausal women with osteoporosis at a long-term follow-up: meta-analysis and systematic review.
    Zhou M; Han S; Zhang W; Wu D · Journal of bone and mineral metabolism · 2022
    Meta-analysis6,853 participants9 studies pooledBone Health forVitamin K
  5. Low-dose vitamin K2 (MK-4) supplementation for 12 months improves bone metabolism and prevents forearm bone loss in postmenopausal Japanese women.
    Koitaya N; Sekiguchi M; Tousen Y; Nishide Y; Morita A; Yamauchi J; Gando Y; Miyachi M; Aoki M; Komatsu M; Watanabe F; Morishita K; Ishimi Y · Journal of bone and mineral metabolism · 2015
    Randomized trial48 participantsBone Health forVitamin K
  6. Vitamin K Intake and Atherosclerotic Cardiovascular Disease in the Danish Diet Cancer and Health Study.
    Bellinge JW; Dalgaard F; Murray K; Connolly E; Blekkenhorst LC; Bondonno CP; Lewis JR; Sim M; Croft KD; Gislason G; Torp-Pedersen C; Tjønneland A; Overvad K; Hodgson JM; Schultz C; Bondonno NP · Journal of the American Heart Association · 2021
    Cohort study53,372 participantsCardiovascular Support Heart Health forVitamin K
  7. Menaquinone-7 supplementation improves arterial stiffness in healthy postmenopausal women. A double-blind randomised clinical trial.
    Knapen MH; Braam LA; Drummen NE; Bekers O; Hoeks AP; Vermeer C · Thrombosis and haemostasis · 2016
    Randomized trial244 participantsCardiovascular Support Heart Health forVitamin K
  8. Effects of One-Year Menaquinone-7 Supplementation on Vascular Stiffness and Blood Pressure in Post-Menopausal Women.
    de Vries F; Bittner R; Maresz K; Machuron F; Gåserød O; Jeanne JF; Schurgers LJ · Nutrients · 2025
    Randomized trial165 participantsCardiovascular Support forVitamin K
  9. Dietary Vitamin K1 Intake and Incident Aortic Valve Stenosis.
    Schultz CJ; Dalgaard F; Bellinge JW; Murray K; Sim M; Connolly E; Blekkenhorst LC; Bondonno CP; Lewis JR; Gislason GH; Tjønneland A; Overvad K; Hodgson JM; Bondonno NP · Arteriosclerosis, thrombosis, and vascular biology · 2024
    Cohort study55,545 participantsCardiovascular Support Heart Health forVitamin K
  10. Association between vitamin K1 intake and mortality in the Danish Diet, Cancer, and Health cohort.
    Palmer CR; Bellinge JW; Dalgaard F; Sim M; Murray K; Connolly E; Blekkenhorst LC; Bondonno CP; Croft KD; Gislason G; Tjønneland A; Overvad K; Schultz C; Lewis JR; Hodgson JM; Bondonno NP · European journal of epidemiology · 2021
    Cohort study56,048 participantsCardiovascular Support Heart Health forVitamin K
  11. The effect of vitamin K1 on arterial calcification activity in subjects with diabetes mellitus: a post hoc analysis of a double-blind, randomized, placebo-controlled trial.
    Bellinge JW; Francis RJ; Lee SC; Bondonno NP; Sim M; Lewis JR; Watts GF; Schultz CJ · The American journal of clinical nutrition · 2022
    Randomized trial149 participantsHeart Health forVitamin K