$10.99 $0.10 per serving
Product analysis
Vitamin K-1 100 mcg offers an economical way to fill low vitamin K intake and support normal bone and mineral nutrition.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality20
Specific preparation details are incomplete, limiting a firm form comparison. The available detail does not establish an advantage over other vitamin K preparations.
Ingredient Transparency63
The vitamin K quantity is disclosed, making the serving amount clear. Specific preparation details are incomplete despite the K1 name.
Value For Money100
The vitamin K contribution is economical at the full serving cost. That value concerns nutrient supply rather than an advantage over another form.
Customer Satisfaction82
Customer ratings are favorable. A substantial number of ratings provides useful context for satisfaction.
Product Focus22
The narrow formula is most relevant to filling a vitamin K gap. Normal bone and mineral nutrition is better supported than wider claims for additional benefits.
- Format
Tablet - Container
- 100 Tablet(s)
- Per serving
- $0.10
- Customer rating
- 4.7 · 1,294 ratings
Goals
Impact
High effect
Vitamin K · 100 mcg
Vitamin K supplies a nutrient involved in bone and mineral metabolism. Its 100 mcg serving can help fill a dietary gap, but nutrient availability does not establish extra benefit when intake is already adequate. The supplied context does not establish cardiovascular protection or superiority of this form.
How this product is rated for Everyday Health
Ingredient fit74
The main nutritional contributions come from Vitamin K. Amounts and unresolved nutrient declarations determine how much each contributes.
Goal fit
Vitamin K provide the main relevant nutrient contributions; other actives do not establish broader routine health benefits.
Dose adequacy
The nutrient amounts provide uneven contributions; smaller or unresolved amounts limit the saved findings.
Pathways17
The strongest supported area is bone and mineral metabolism. The other represented functions depend on the nutrients and amounts supplied.
Depth
The strongest contribution is in bone and mineral metabolism. This describes nutrient roles, not a proven improvement in health outcomes.
Breadth
The contribution remains limited to a single, partially represented nutrient function.
Evidence78
The supplied context supports nutritional roles, especially when intake is low. It does not establish extra health benefits above adequate intake.
Evidence strength
The relevant nutrients have supported nutritional roles; extra benefit in adults with adequate intake is not established.
Studied preparation
The saved findings accept the relevant preparations, without establishing superiority of their forms or delivery methods.
Formulation logic100
The relevant nutrients can contribute independently, and no matching conflict was found. Meeting the saved amount comparison does not establish a clinical benefit.
Partner coverage
The relevant nutrients can contribute independently or have their required partner present; this does not establish added benefit from combining them.
Conflicts
No matching conflict was found in the supplied checks; this is not a general safety conclusion.
Effective doses
The relevant ingredients meet the saved amount comparison, which does not prove an effective clinical dose.
Impact
Limited evidence
Vitamin K · 100 mcg
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Vitamin K-1 | 100 mcg |
Vitamin K · 100 mcg OverallScore42
Each serving provides 100 mcg of vitamin K1, a form used in normal blood clotting. The whole-product serving costs about $0.11.
How this ingredient is rated
Active Ingredient Quality & Bioavailability11
The identified vitamin K source is K1; no MK-7 source is resolved.
Vitamin K Form (MK-7 vs. MK-4 vs. K1)
Phytonadione is vitamin K1, which is involved in normal blood clotting.
MK-7 Isomer Disclosure
No MK-7 source is identified, so an MK-7 isomer cannot be assessed.
Dose, Safety & Label Transparency44
The saved information identifies 100 mcg of vitamin K1 per serving.
Vitamin K2 (MK-7) Dosage Efficacy
No MK-7 source is identified, so an MK-7 amount is not applicable to the resolved source.
Form and Subtype Transparency
Both the vitamin K1 form and its amount are identified.
Value100
At about $0.11 per whole-product serving, the price is relatively low.
Price per Effective MK-7 Serving
At about $0.11 per whole-product serving, the price is relatively low.
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Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- Dietary vitamin K intake associates with reduced all-cause mortality in non-alcoholic fatty liver disease patients.
- Vitamin K status, cardiovascular disease, and all-cause mortality: a participant-level meta-analysis of 3 US cohorts.
- The Effect of Topical Vitamin K1 on the Treatment of Cetuximab-Induced Skin Rashes in Metastatic Colorectal Cancer Patients.
- Effect of vitamin K on improving post‑kidney transplant outcomes: a meta‑analysis.
- Vitamin K1 intake is associated with lower risk for all-cause and cardiovascular disease mortality in community-dwelling older Australian women.
- Vitamin K Intake and Atherosclerotic Cardiovascular Disease in the Danish Diet Cancer and Health Study.
- Menaquinone-7 supplementation improves arterial stiffness in healthy postmenopausal women. A double-blind randomised clinical trial.
- 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.
- Dietary Vitamin K1 Intake and Incident Aortic Valve Stenosis.
- Association between vitamin K1 intake and mortality in the Danish Diet, Cancer, and Health cohort.
- 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.
- Vitamin K status and cognitive function in healthy older adults.
- High dephospho-uncarboxylated matrix Gla protein concentrations, a plasma biomarker of vitamin K, in relation to frailty: the Longitudinal Aging Study Amsterdam.
- Vitamin K Concentration and Cognitive Status in Elderly Patients on Anticoagulant Therapy: A Pilot Study.