MK-7 Vitamin K-2 100 mcg

MK-7 Vitamin K-2 100 mcg

NOW4.8 (31,134 ratings)
Format:Capsule Quantity: 120 Capsule(s) · 120 servings
Goals
$19.93 $0.16 per serving

Product analysis

95 out of 100

MK-7 Vitamin K-2 100 mcg may support selected measures of bone health, with limited evidence from postmenopausal women. The findings do not establish general fracture prevention or longer life.

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

Nutrient Quality100

Vitamin K is clearly identified as MK-7. That identifies the preparation without establishing superior clinical outcomes.

Ingredient Transparency100

The vitamin K amount and MK-7 form are disclosed. Those details make the serving straightforward to compare.

Value For Money100

The low cost per serving supports good value for MK-7. The clearly identified preparation makes comparisons with similar supplements straightforward.

Customer Satisfaction94

Customer feedback is very positive across tens of thousands of ratings. The extensive review base gives a well-established picture of satisfaction.

Product Focus70

The clearest support concerns selected bone and blood-vessel measures in postmenopausal women. The serving is below the principal long-term study amount, and those findings do not establish fewer fractures, cardiovascular events or longer life.

Format
Capsule
Container
120 Capsule(s)
Per serving
$0.16
Customer rating
4.8 · 31,134 ratings
Report analysis

Goals

Heart Health
Impact
High effect
B- Ingredient FitF PathwaysB EvidenceA+ Formulation Logic
Vitamin K · 100 mcg
Study evidence
Vitamin K Mixed 62 studies
Everyday Health
Impact
High effect
B- Ingredient FitF PathwaysB EvidenceA+ Formulation Logic
Vitamin K · 100 mcg
Study evidence
Vitamin K Supportive 34 studies
Bone Health
Impact
High effect
B Ingredient FitD- PathwaysA+ EvidenceA+ Formulation Logic
Vitamin K · 100 mcg
Study evidence
Vitamin K Supportive 78 studies
Cardiovascular Support
Impact
High effect
B- Ingredient FitF PathwaysC+ EvidenceA+ Formulation Logic
Vitamin K · 100 mcg
Study evidence
Vitamin K Supportive 40 studies
Longevity
Impact
High effect
B Ingredient FitD- PathwaysB EvidenceA+ Formulation Logic
Vitamin K · 100 mcg
Study evidence
Vitamin K Supportive 27 studies

Ingredients

IngredientAmount per servingScore
Vitamin K2 (Menaquinone-7)
100 mcg 93
Gluten Free Adults 18–50 Vegan Kosher Dairy Free Vegetarian
Report overview
B+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value
A serving provides 100 mcg of vitamin K at a low cost per serving. The sources are vitamin K2 as MK-7. The MK-7 is not specified as trans or all-trans.
How this ingredient is rated

Active Ingredient Quality & Bioavailability82

The sources are vitamin K2 as MK-7. The MK-7 is not specified as trans or all-trans.
Vitamin K Form (MK-7 vs. MK-4 vs. K1)
The sources are vitamin K2 as MK-7.
MK-7 Isomer Disclosure
The MK-7 is not specified as trans or all-trans.

Dose, Safety & Label Transparency100

A serving provides 100 mcg of MK-7. The label states the amount and source.
Vitamin K2 (MK-7) Dosage Efficacy
A serving provides 100 mcg of MK-7.
Form and Subtype Transparency
The label states the amount and source.

Value100

The cost per serving is low.
Price per Effective MK-7 Serving
The cost per serving is low.
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. Dietary vitamin K intake associates with reduced all-cause mortality in non-alcoholic fatty liver disease patients.
    Huang Y; Zhu X; Han L; Hu H · Scientific reports · 2025
    Cohort study7,857 participantsEveryday Health forVitamin K
  12. Vitamin K status, cardiovascular disease, and all-cause mortality: a participant-level meta-analysis of 3 US cohorts.
    Shea MK; Barger K; Booth SL; Matuszek G; Cushman M; Benjamin EJ; Kritchevsky SB; Weiner DE · The American journal of clinical nutrition · 2020
    Meta-analysis3,891 participants3 studies pooledEveryday Health Longevity forVitamin K
  13. The Effect of Topical Vitamin K1 on the Treatment of Cetuximab-Induced Skin Rashes in Metastatic Colorectal Cancer Patients.
    Roayaei M; Rezaei M; Najafizade N · Advanced biomedical research · 2024
    Randomized trial49 participantsEveryday Health forVitamin K
  14. Effect of vitamin K on improving post‑kidney transplant outcomes: a meta‑analysis.
    Sun Z; Zhu K; Liang G; Yan F; Chao S; Jia L; Niu Y · Experimental and therapeutic medicine · 2023
    Meta-analysis7 studies pooledEveryday Health forVitamin K
  15. Vitamin K1 intake is associated with lower risk for all-cause and cardiovascular disease mortality in community-dwelling older Australian women.
    Dupuy M; Radavelli-Bagatini S; Zhong L; Dalla Via J; Zhu K; Blekkenhorst LC; Bondonno NP; Linneberg A; Bellinge JW; Schultz C; Courtney W; Prince RL; Hodgson JM; Lewis JR; Sim M · Nutrition, metabolism, and cardiovascular diseases : NMCD · 2024
    Cohort study1,436 participantsEveryday Health forVitamin K
  16. 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
  17. Topical Menaquinone‑7 (Vitamin K2, MK-7) as a Mitochondrial Bioenergetic Activator for Skin Anti-Aging: Mechanistic Evidence in Skin Cells and a Randomized Split-Face/Neck Study.
    Huang H; Wei R; Xu C; Liu C; Zhao S; Li Y; Wang M · ACS omega · 2026
    Randomized trial30 participantsLongevity forVitamin K
  18. Vitamin K status and cognitive function in healthy older adults.
    Presse N; Belleville S; Gaudreau P; Greenwood CE; Kergoat MJ; Morais JA; Payette H; Shatenstein B; Ferland G · Neurobiology of aging · 2014
    Cross-sectional study320 participantsLongevity forVitamin K
  19. High dephospho-uncarboxylated matrix Gla protein concentrations, a plasma biomarker of vitamin K, in relation to frailty: the Longitudinal Aging Study Amsterdam.
    Machado-Fragua MD; Hoogendijk EO; Struijk EA; Rodriguez-Artalejo F; Lopez-Garcia E; Beulens JW; van Ballegooijen AJ · European journal of nutrition · 2021
    Cohort study644 participantsLongevity forVitamin K
  20. Vitamin K Concentration and Cognitive Status in Elderly Patients on Anticoagulant Therapy: A Pilot Study.
    Alisi L; Cafolla C; Gentili A; Tartaglione S; Curini R; Cafolla A · Journal of aging research · 2022
    Cross-sectional study85 participantsLongevity forVitamin K