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Dietary supplement

Certified Vegan K2 500 mcg Natural Strawberry Flavor Ingredients & Drug Interactions

by Country Life

Certified Vegan K2 500 mcg Natural Strawberry Flavor label
See full label image
Tablet Or Pill 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 Certified Vegan K2 500 mcg Natural Strawberry Flavor 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

Certified Vegan K2 500 mcg Natural Strawberry Flavor is a dietary supplement by Country Life 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 Certified Vegan K2 500 mcg Natural Strawberry Flavor by Country Life

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HelloPharmacist Scorecard of Certified Vegan K2 500 mcg Natural Strawberry Flavor by Country Life

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 (500 mcg per serving). Vitamin K is a fat-soluble vitamin your body uses to produce proteins involved in blood clotting and bone metabolism.

The remaining ingredients — glucose, cellulose, glyceryl behenate, citric acid, natural strawberry flavor, medium chain triglyceride, silicon dioxide, and rebaudioside A — are inactive excipients (fillers and binders) that help form and flavor the tablet.

Does it work?

Moderate 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
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: Bone formation and health with calcium and vitamin D.
  • We looked for evidence on: Osteoporosis, Bone density, Bone strength, Fracture prevention.
  • The strongest evidence on file: Vitamin K is rated "Possibly Effective" for Osteoporosis (Natural Medicines).

Vitamin K is effective for treating vitamin K deficiency (hypoprothrombinemia), vitamin K-dependent clotting factor deficiency, reversing excessive warfarin anticoagulation, and treating hemorrhagic disease. The evidence also suggests it may be possibly effective for osteoporosis, though the data isn't as strong.

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 at normal dietary amounts. The most common side effects are mild gastrointestinal — nausea, stomach upset, and diarrhea — reported in a small number of people.

The safety notes caution that while normal dietary amounts are fine, you should check with your doctor or pharmacist before taking supplements. Vitamin K is rated likely safe during pregnancy and 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), double-check with your pharmacist before adding this product. Vitamin K can reduce how well your blood thinner works, which is a major concern.

Check your own medication Run your meds through the checker above

The bottom line

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

This is a straightforward K2 supplement for people who want to support their clotting and bone health. If you take warfarin or any blood thinner, you absolutely must talk to your pharmacist or doctor before starting it — vitamin K can interfere with how your medication works.

Otherwise, it's generally well tolerated with only mild GI side effects in some people.

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 Mar 25, 2025.

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 Certified Vegan K2 500 mcg Natural Strawberry Flavor, straight from the product label.

Brand Country Life
Barcode (UPC) 015794080152
Net contents 60 Chewable Tablet(s)
Market status On market
Date entered into DSLD Mar 25, 2025
DSLD ID 326925
Product type Vitamin
Supplement form Tablet Or Pill
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Gluten Free, Dairy Free
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 Certified Vegan K2 500 mcg Natural Strawberry Flavor by Country Life, 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 Chewable Tablet(s)
Maximum serving Sizes:
1 Chewable Tablet(s)
Servings per container
60
UPC/BARCODE
015794080152
IngredientAmount% DV
Vitamin K500 mcg--

Other ingredients: Glucose, Cellulose, Glyceryl Behenate, Citric Acid, Strawberry Flavor, Natural, Medium Chain Triglyceride, Silicon Dioxide, Rebaudioside A

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

Emerging research shows that vitamin K2 aids in bone formation. For optimal bone health, include vitamin K along with calcium and vitamin D. Country Life uses a dual spectrum vitamin K2 complex including 400 mcg of MK-4 as well as 100 mcg MK-7.

Natural strawberry flavor chewable tablet - no pills! Dual spectrum MK-4 and MK-7 complex

Formulation

This delicious, chewable tablet makes taking supplements easier than ever - no pills to swallow, no need for water!

Yes certified gluten-free by GFCO.org No yeast or wheat No milk or salt No preservatives No artificial colors or flavors No magnesium stearate No GMOs

Yes certified vegan by the AVA

Yes manufacturing supports wind power

Certified gluten-free

Supports bone health

Our pledge of integrity Authenticity Cleanliness Freshness Consistency Accuracy

This product has been manufactured at a GMP registered facility.

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.

General Statements

Yes recyclable packaging

Seals/Symbols

Certified B Corporation Certified GF Gluten-free

Brand IP Statement(s)

Country Life Established 1971

FDA Statement of Identity

Dietary Supplement

Suggested/Recommended/Usage/Directions

Directions: Adults chew one (1) chewable tablet daily with or without food.

Precautions

Do not exceed recommended dose.

As a reminder, discuss the supplements and medications that you take with your health care providers.

Caution: If you are pregnant, nursing, taking medication (especially anti-coagulants, blood thinners), planning surgery, or have a medical condition, consult a doctor before using this product.

Stop using and consult a doctor if any adverse reactions occur. Do not accept if seal is broken.

Keep out of the reach of children.

Storage

Store in a dry place between 59 degrees - 86 degrees F.

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

See for yourself

Certified Vegan K2 500 mcg Natural Strawberry Flavor by Country Life label

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

Certified Vegan K2 500 mcg Natural Strawberry Flavor 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 Certified Vegan K2 500 mcg Natural Strawberry Flavor by Country Life

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

Serving size1 Chewable Tablet(s) Dosage formTablet Or Pill Servings per container60 Amounts shown are per serving.

Vitamin K

Interacts with
2 drugs
500 mcg per serving Form: Menaquinone-4, Menaquinone-7

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: Glucose, Cellulose, Glyceryl Behenate, Citric Acid, Strawberry Flavor, Natural, Medium Chain Triglyceride, Silicon Dioxide, Rebaudioside A. These complete the product’s ingredient list but are not active constituents.

Interaction report

Certified Vegan K2 500 mcg Natural Strawberry Flavor by Country Life Drug Interactions

Want to check YOUR meds against Certified Vegan K2 500 mcg Natural Strawberry Flavor?

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 Certified Vegan K2 500 mcg Natural Strawberry Flavor interact with 2 drugs. Click any drug to see the details.

1 of the 1 ingredient in Certified Vegan K2 500 mcg Natural Strawberry Flavor 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 Certified Vegan K2 500 mcg Natural Strawberry Flavor 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 Certified Vegan K2 500 mcg Natural Strawberry Flavor, from the product label.

Country Life

See all Country Life products
Name
Country Life, LLC
Street Address
180 Vanderbilt Motor Parkway
City
Hauppauge
State
NY
ZipCode
11788
Web Address
CountryLifeVitamins.com
Pharmacist Counseling Corner

Certified Vegan K2 500 mcg Natural Strawberry Flavor by Country Life: Common Questions

Does Certified Vegan K2 500 mcg Natural Strawberry Flavor by Country Life interact with any medications?
Yes. Based on its ingredients, Certified Vegan K2 500 mcg Natural Strawberry Flavor 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?
Certified Vegan K2 500 mcg Natural Strawberry Flavor 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 interact with my blood thinner?
Yes — vitamin K has a major interaction with warfarin and similar blood thinners. It can weaken or reverse their effects. If you take a blood thinner, talk to your doctor before starting this supplement; you may need a dose adjustment or more frequent blood tests.
Is vitamin K safe to take every day?
Vitamin K from food and supplements is generally well tolerated in healthy people at normal amounts. That said, the safety notes recommend checking with your doctor or pharmacist before using supplements, especially if you have any medical conditions or take medications.
What are the side effects?
Taken by mouth, vitamin K is generally well tolerated. The most common side effects are mild gastrointestinal — nausea, stomach upset, and diarrhea — in a small number of people.
Is it safe in pregnancy?
Yes, vitamin K is rated likely safe during pregnancy and breastfeeding. That said, any supplement decision during pregnancy should be made with your doctor.
What is vitamin K used for?
Vitamin K is a fat-soluble vitamin essential for blood clotting and bone metabolism. This supplement is effective for treating vitamin K deficiency and clotting disorders, and may help support bone health.
Does this product have fillers?
Yes — the tablet includes inactive ingredients like glucose, cellulose, glyceryl behenate, citric acid, natural strawberry flavor, medium chain triglyceride, silicon dioxide, and rebaudioside A to form and flavor the tablet.

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

Not sure if Certified Vegan K2 500 mcg Natural Strawberry Flavor is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.

Certified Vegan K2 500 mcg Natural Strawberry Flavor label
Go deeper

The Full Monographs Behind Certified Vegan K2 500 mcg Natural Strawberry Flavor’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

Certified Vegan K2 500 mcg Natural Strawberry Flavor'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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