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Dietary supplement

Vitamin K2 as MK-7 Ingredients & Drug Interactions

by SuperiorLabs

Vitamin K2 as MK-7 label
See full label image
Capsule Category: Vitamin
Most serious interaction: Major
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Vitamin K2 as MK-7 against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Major

Vitamin K2 as MK-7 is a dietary supplement by SuperiorLabs with 1 active ingredient. Its ingredients are commonly taken for supporting normal blood clotting, bone health, heart and vascular health.Based on those ingredients, 2 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Vitamin K. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Vitamin K2 as MK-7 by SuperiorLabs

Ask about any prescription or over-the-counter medication and we check it for interactions with Vitamin K2 as MK-7 by SuperiorLabs — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Vitamin K2 as MK-7 by SuperiorLabs

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 11, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains one active ingredient: vitamin K (as MK-7, a form naturally found in fermented foods). Vitamin K plays a key role in blood clotting and bone health.

The capsule also contains cellulose and rice concentrate as inactive ingredients.

Does it work?

Strong evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Strong

Clinical evidence supports at least one of this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: bone health and cardiovascular health.
  • We looked for evidence on: Cardiovascular disease (CVD), Osteoporosis, Hemorrhagic disease, Hypoprothrombinemia, Vitamin K-dependent clotting factors deficiency (VKCFD), Warfarin anticoagulation — and 2 related terms.
  • The strongest evidence on file: Vitamin K is rated "Effective" for Hemorrhagic disease (Natural Medicines).
  • Also on file: Vitamin K is rated "Effective" for Hypoprothrombinemia, Warfarin anticoagulation, Vitamin K-dependent clotting factors deficiency (VKCFD).
  • Also on file: Vitamin K is rated "Possibly Effective" for Osteoporosis.

Vitamin K is effective for treating blood clotting disorders, including conditions where the body lacks enough clotting factors or can't use them properly. It's also effective for reversing the effects of warfarin when needed medically.

For bone health and osteoporosis, the evidence shows it may help, though more research is needed to be certain.

The evidence, ingredient by ingredient Vitamin K

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Taken by mouth, vitamin K is generally well tolerated in healthy people. The most common side effects are mild — nausea, diarrhea, and stomach upset — and happen in a small number of people.

The safety data notes that normal dietary amounts are fine, but you should check with your doctor before taking a supplement, especially if you're on any medications. Vitamin K is likely safe during pregnancy and while breastfeeding.

Side effects, ingredient by ingredient Vitamin K

Meds to double-check

Major interaction found
Known Interaction Concern · database check
Major identified

At least one ingredient has a documented Major-severity interaction. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Vitamin K.
  • The most serious interaction on file is rated Major.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs.
  • For scale: 2 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

If you take warfarin (Coumadin) or any other blood thinner (anticoagulant), you must check with your doctor or pharmacist before starting this supplement. Vitamin K can reduce how well your blood thinner works, putting you at risk for clots.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with clinical evidence supporting its stated purpose. Major medication interactions have been identified, and safety information is well characterized.

Vitamin K2 works well if you need to support blood clotting or bone health and aren't on warfarin or other blood thinners. If you do take a blood thinner, talk to your pharmacist or doctor before adding this supplement — the interaction is serious and your dose may need adjusting.

Otherwise, it's generally well tolerated with only mild side effects possible.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Jun 22, 2023.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Vitamin K2 as MK-7, straight from the product label.

Brand SuperiorLabs
Barcode (UPC) X002XK9KKH
Net contents 120 Vegetable Capsule(s)
Market status On market
Date entered into DSLD Jun 22, 2023
DSLD ID 286826
Product type Vitamin
Supplement form Capsule
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years)
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Vitamin K2 as MK-7 by SuperiorLabs, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Vegetarian Capsule(s)
Maximum serving Sizes:
1 Vegetarian Capsule(s)
Servings per container
120
UPC/BARCODE
X002XK9KKH
IngredientAmount% DV
Vitamin K100 mcg83%

Other ingredients: Cellulose, Rice Concentrate

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Formula

MK-7 is a form of vitamin K2 that has a high bioavailability. Vitamin K2 activates a protein that helps calcium bind to our bones and plays a role in cardiovascular health. Superior Labs Vitamin K2 as MK-7 capsules contain 100mcg pure vitamin K2 menaquinone-7 (MK-7), with absolutely no magnesium stearate, dioxides, preservatives, or other potentially harmful artificial ingredients of any kind.

Formulation

Superior Labs Vitamin K2 as MK-7 capsules contain 100mcg pure vitamin K2 menaquinone-7 (MK-7), with absolutely no magnesium stearate, dioxides, preservatives, or other potentially harmful artificial ingredients of any kind.

This product is formulated, developed and manufactured in a FDA registered and GMP certified facility, 3rd party inspected by a leading compliance authority for superior quality assurance.

100% pure Pure and potent Optimal absorption Promotes calcium absorption Supports bone health Supports healthy arteries

Does not contain: Magnesium stearate, dioxides, preservatives, or artificial ingredients of any kind.

Suggested/Recommended/Usage/Directions

Suggested use: As a dietary supplement, adults take 1 capsule daily, or as directed by your health care practitioner. Best when taken with a meal.

Precautions

Caution: Do not exceed recommended dosage.

Please consult a physician before consuming this product if you are pregnant or nursing, taking medication or have a medical condition.

Not intended for use by individuals under the age of 18.

Do not use if safety seal is damaged or missing.

Keep out of reach of children.

Storage

Store in a cool, dry place.

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

FDA Statement of Identity

Dietary Supplement

Seals/Symbols

Metal Safe Heavy Metal Tested GMP Certified Facility Made in USA

General Statements

Superior Labs - Vitamin K2 as MK-7 New

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Vitamin K2 as MK-7 by SuperiorLabs label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Vitamin K2 as MK-7 label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Vitamin K2 as MK-7 by SuperiorLabs

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size1 Vegetarian Capsule(s) Dosage formCapsule Servings per container120 Amounts shown are per serving.

Vitamin K

Interacts with
2 drugs
100 mcg per serving Form: Vitamin K2

Vitamin K is an essential nutrient your body needs for normal blood clotting and to support healthy bones. Most people get enough from food, but suppl...

Vitamin K monograph & interactions

Other (inactive) ingredients: Cellulose, Rice Concentrate. These complete the product’s ingredient list but are not active constituents.

Interaction report

Vitamin K2 as MK-7 by SuperiorLabs Drug Interactions

Want to check YOUR meds against Vitamin K2 as MK-7?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
2Drugs
2 Major

Ingredients driving the most interactions

Vitamin K 2

Individual Drug Interactions

The ingredients in Vitamin K2 as MK-7 interact with 2 drugs. Click any drug to see the details.

1 of the 1 ingredient in Vitamin K2 as MK-7 interact with drugs. Each result below shows which ingredient is responsible. Vitamin K

Each ingredient & the kinds of drugs it affects

For each ingredient in Vitamin K2 as MK-7 with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

Vitamin K1 drug type · 2 drugs

Warfarin (Coumadin)

Vitamin K can antagonize and reverse the therapeutic effects of warfarin.
Vitamin K antagonizes the effects of warfarin. Excessive vitamin K intake, either from supplements or from changes in the diet, can reduce the anticoagulant effect of warfarin.

Likelihood Likely Evidence C
Vitamin K full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Vitamin K2 as MK-7, from the product label.

SuperiorLabs

See all SuperiorLabs products
Name
Superior Labs, LLC.
City
Park City
State
UT
ZipCode
84098
Phone Number
(888) 708-5227
Web Address
superiorlabs.com
Pharmacist Counseling Corner

Vitamin K2 as MK-7 by SuperiorLabs: Common Questions

Does Vitamin K2 as MK-7 by SuperiorLabs interact with any medications?
Yes. Based on its ingredients, Vitamin K2 as MK-7 has a known interaction with 2 medications, including 2 rated major. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Vitamin K2 as MK-7 contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Will this help my bones?
Vitamin K may help with osteoporosis, but the evidence is still limited — we'd call it possibly effective based on what we know right now. Talk to your doctor about whether it's right for your bone health.
What's the difference between K2 and regular vitamin K?
K2 (MK-7) is a form of vitamin K naturally found in fermented foods and some animal products. It's absorbed differently by your body than K1 found in leafy greens, and may have longer-lasting effects — but they both play similar roles in clotting and bone health.
Can I take this if I'm pregnant or breastfeeding?
Yes, vitamin K is likely safe during pregnancy and while breastfeeding. That said, it's always smart to mention any new supplement to your doctor during pregnancy or postpartum.
What side effects should I expect?
Most people don't have problems. If you do, nausea, diarrhea, or mild stomach upset are the most common, and they're usually mild. Serious side effects are very rare when taken by mouth.
Is this a food or a drug?
Vitamin K is an essential nutrient — you get it from food every day. This product is a supplement to boost your intake above what you eat. If you have a medical condition or take medications, check with your pharmacist before using it.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if Vitamin K2 as MK-7 is safe with your meds?

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Vitamin K2 as MK-7 label
Go deeper

The Full Monographs Behind Vitamin K2 as MK-7’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Vitamin K

Interacts with 2 drugs

Vitamin K is an essential nutrient your body needs for normal blood clotting and to support healthy bones. Most people get enough from food, but supplements are sometimes used for deficiency...

Read the full Vitamin K monograph →
Sources

Sources & How We Checked

Vitamin K2 as MK-7's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 11 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Vitamin K 11 references
  1. McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
  2. Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc. Washington, DC: National Academy Press, 2002.
  3. Crowther MA, Ageno W, Garcia D, et al. Oral vitamin K versus placebo to correct excessive anticoagulation in patients receiving warfarin: a randomized trial. Ann Intern Med. 2009;150(5):293-300. PubMed
  4. Dietary vitamin K guidance: an effective strategy for stable control of oral anticoagulation? Nutr Rev. 2010;68(3):178-81. PubMed
  5. Kim JS, Nafziger AN, Gaedigk A, et al. Effects of oral vitamin K on S- and R-warfarin pharmacokinetics and pharmacodynamics: enhanced safety of warfarin as a CYP2C9 probe. J Clin Pharmacol. 2001 Jul;41(7):715-22. PubMed
  6. Riegert-Johnson, D. L. and Volcheck, G. W. The incidence of anaphylaxis following intravenous phytonadione (vitamin K1): a 5-year retrospective review. Ann.Allergy Asthma Immunol. 2002;89(4):400-406. PubMed
  7. Dezee, K. J., Shimeall, W. T., Douglas, K. M., Shumway, N. M., and O'malley, P. G. Treatment of excessive anticoagulation with phytonadione (vitamin K): a meta-analysis. Arch.Intern.Med. 2-27-2006;166(4):391-397. DOI
  8. Dentali, F., Ageno, W., and Crowther, M. Treatment of coumarin-associated coagulopathy: a systematic review and proposed treatment algorithms. J.Thromb.Haemost. 2006;4(9):1853-1863. PubMed
  9. Caluwé R, Vandecasteele S, Van Vlem B, Vermeer C, De Vriese AS. Vitamin K2 supplementation in haemodialysis patients: a randomized dose-finding study. Nephrol Dial Transplant. 2014;29(7):1385-90.
  10. Huang ZB, Wan SL, Lu YJ, Ning L, Liu C, Fan SW. Does vitamin K2 play a role in the prevention and treatment of osteoporosis for postmenopausal women: a meta-analysis of randomized controlled trials. Osteoporos Int. 2015;26(3):1175-86. PubMed
  11. Hunnali CR, Devi U, Kitchanan S, Sethuraman G. Three Different Regimens for Vitamin K Birth Prophylaxis in Infants Born Preterm: A Randomized Clinical Trial. J Pediatr 2023;255:98-104. PubMed

See these in context on the Vitamin K monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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