Major interaction on record — check this product against your medications before combining. Based on 2 of 4 ingredients. Check your meds →
Dietary supplement

KD Ultra Ingredients & Drug Interactions

by Arthur Andrew Medical

KD Ultra label
See full label image
Capsule Category: Other Combinations
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 KD Ultra 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

KD Ultra is a dietary supplement by Arthur Andrew Medical with 4 active ingredients. 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 KD Ultra by Arthur Andrew Medical

Ask about any prescription or over-the-counter medication and we check it for interactions with KD Ultra by Arthur Andrew Medical — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of KD Ultra by Arthur Andrew Medical

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 Aug 13, 2026

What’s inside

Partial disclosure
Ingredient Transparency · database check
Partial

Most active ingredients list an amount, but at least one is hidden in a blend or missing.

Why this rating?
  • The label discloses an exact amount for 5 of its 6 active ingredients.
  • “Vitamin K2” is listed as a grouped ingredient — the label gives one combined amount (1,600 mg) without saying how much of each component you get.

KD Ultra contains 6 ingredients: three forms of vitamin K (vitamin K, menaquinone-4, and menaquinone-7), lipase (an enzyme that helps break down fats), vitamin D3, and a blend containing MK-6 and MK-9. Vitamin K supports blood clotting and bone health; lipase aids fat digestion.

The other ingredients are cellulose and rice dextrin, which are inactive fillers.

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 and blood health support.
  • We looked for evidence on: Hemorrhagic disease, Hypoprothrombinemia, Osteoporosis, Vitamin K-dependent clotting factors deficiency (VKCFD), Warfarin anticoagulation, bone density — 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 in this product is effective for blood clotting disorders like vitamin K-dependent clotting factors deficiency and hemorrhagic disease, and it's effective at managing warfarin anticoagulation when dosed properly under medical supervision. For osteoporosis, vitamin K is rated possibly effective.

Lipase's effectiveness for inflammatory bowel disease or indigestion is not well established — we hold insufficient reliable evidence to rate it. Vitamin D3 and the MK-6/MK-9 blend effectiveness data isn't on file.

The evidence, ingredient by ingredient Vitamin K Lipase

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 2 of the 2 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 2 of 2.
  • General safety write-ups exist for 2 of 2.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Vitamin K is generally well tolerated orally. The most common side effects are mild: nausea, abdominal pain, and diarrhea — a small number of people experience these.

Vitamin K is likely safe in pregnancy and while breastfeeding. Lipase has no reported adverse effects in adults, though safety data in pregnancy and breastfeeding is limited — if you're pregnant or nursing, check with your doctor first.

Because we hold little safety data on the vitamin D3 and MK-6/MK-9 components in pregnancy or breastfeeding, discuss those with your healthcare provider if you're in either situation.

Side effects, ingredient by ingredient Vitamin K Lipase

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 2 matched ingredients 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.

Check before taking this product if you use warfarin (Coumadin) or any blood thinner. Vitamin K can reduce how well these medications work at preventing clots.

We could not verify interactions for vitamin D3 and MK-6/MK-9, so ask your pharmacist to screen those ingredients against your other medications as well.

Check your own medication Run your meds through the checker above

The bottom line

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

This product is mainly a vitamin K supplement paired with lipase and vitamin D3. If you take warfarin or any other blood thinner, you must talk with your doctor or pharmacist before taking it — vitamin K can interfere with those medications.

For anyone else, it's generally well tolerated, though mild digestive upset can happen. Run your medications through the search tool on this page, and check with your own doctor or pharmacist before you start.

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

Assessment coverage: 4 of 6 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated May 19, 2022.

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 KD Ultra, straight from the product label.

Brand Arthur Andrew Medical
Barcode (UPC) 855822008341
Net contents 90 Capsule(s)
Market status On market
Date entered into DSLD May 19, 2022
DSLD ID 263498
Product type Other Combinations
Supplement form Capsule
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Kosher, 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 KD Ultra by Arthur Andrew Medical, 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 Capsule(s)
Maximum serving Sizes:
2 Capsule(s)
Servings per container
90
UPC/BARCODE
855822008341
IngredientAmount% DV
Vitamin K100 mcg83%
Lipase0 NP--
Menaquinone-41500 mcg--
Vitamin K21600 mg1333%
Vitamin D362.5 mcg312%
Menaquinone-760 mcg--
MK-6 / MK-940 mcg--

Other ingredients: Cellulose, Rice Dextrin

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

Vitamin K is essential for maintaining the body's calcium balance which is critical for bone and blood health, while Vitamin D promotes bone health, cognitive function, and immune support. Several different forms of Vitamin K2 exist, ranging from MK4 to MK13, each providing unique health benefits. Until recently, only MK4 and MK7 were available in supplements. KD Ultra now supplies a full-spectrum blend of four available forms of Vitamin K2 (MK-4, 6, 7, 9), along with Vitamin K1. KD Ultra also contains vegan-friendly Vitamin D3 sourced from lichen as well as the enzyme lipase to help facilitate the absorption of these fat-soluble vitamins. This perfect blend maintains proper blood clotting, healthy blood viscosity, strong bones, normal brain and nervous system health, and a healthy immune system, all in one easy-to-take supplement.

Star-K (Kosher)

Full spectrum K2 with vegan D3 Full spectrum Vitamin K2 (MK-4,6,7,9) 2500 IU Vegan Vitamin D3

Suggested/Recommended/Usage/Directions

Suggested Use: Take 1-2 capsules daily of KD Ultra, or as directed by your healthcare practitioner. If taking more than one capsule, they may be split up and taken with each meal, or taken all at once.

Precautions

Warning: Do not take this product without the consent of your physician if you are currently taking anti-coagulants or if you are pregnant or nursing.

Keep out of reach of children.

Seals/Symbols

AVA Certified Vegan American Vegetarian Association Star-K (Kosher)

Formulation

AVA Certified Vegan American Vegetarian Association

Maintains calcium balance Supports strong bones Encourages healthy immune function

KD Ultra is free of dairy, gluten, and soy allergens. Contains no artificial colors or preservatives.

Brand IP Statement(s)

Copyright Arthur Andrew Medical Inc.

FDA Statement of Identity

Dietary Supplement

Storage

Store in a cool dry place wth lid tightly closed.

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

For more information about KD Ultra, please call 800-448-5015, or visit www.arthurandandrew.com.

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

See for yourself

KD Ultra by Arthur Andrew Medical label

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

KD Ultra 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 KD Ultra by Arthur Andrew Medical

These are the 4 active ingredients this product is made of. Select any to open its full monograph.

Serving size1 Capsule(s) Dosage formCapsule Servings per container90 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Vitamin K

Interacts with
2 drugs
100 mcg per serving Form: Phytonadione

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

Lipase

No known
interactions
0 NP per serving

Lipase is a digestive enzyme that helps your body break down dietary fats. It is well established as part of prescription pancreatic enzyme therapy fo...

Lipase monograph & interactions

Vitamin K2

Interacts with
2 drugs
1600 mg per serving

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 K2 monograph & interactions

Vitamin D3

62.5 mcg per serving Form: Lichen

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

Interaction report

KD Ultra by Arthur Andrew Medical Drug Interactions

Want to check YOUR meds against KD Ultra?

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 KD Ultra interact with 2 drugs. Click any drug to see the details.

1 of the 4 ingredients in KD Ultra 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 KD Ultra 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 KD Ultra, from the product label.

Arthur Andrew Medical

See all Arthur Andrew Medical products
Name
Arthur Andrew Medical
Street Address
8350 E Raintree Dr #101
City
Scottsdale
State
AZ
ZipCode
85260
Phone Number
800-448-5015
Web Address
www.arthurandrew.com
Pharmacist Counseling Corner

KD Ultra by Arthur Andrew Medical: Common Questions

Does KD Ultra by Arthur Andrew Medical interact with any medications?
Yes. Based on its ingredients, KD Ultra 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?
KD Ultra contains 4 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is 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 affect my warfarin?
Yes — the vitamin K in this product can reduce warfarin's blood-thinning effect. Don't start this product without talking to your doctor or pharmacist first, and don't stop your warfarin. Your provider may need to adjust your dose or monitor you more closely if you take both.
Can I take this while pregnant or breastfeeding?
Vitamin K is likely safe in pregnancy and lactation. However, we don't have enough safety data on lipase, vitamin D3, or the MK-6/MK-9 blend in these situations. Talk with your doctor or pharmacist to see if it's right for you.
What are the side effects?
Vitamin K is generally well tolerated orally. The most common side effects are nausea, abdominal pain, and diarrhea — these are mild and not everyone gets them. Serious side effects are very rare.
What does lipase do in this formula?
Lipase is an enzyme that helps your body break down and absorb fats from food. We don't have strong evidence that it works for indigestion or inflammatory bowel disease, though.
Is this good for my bones?
Vitamin K in this product is rated possibly effective for osteoporosis based on available evidence. If bone health is your goal, talk with your doctor about whether this fits your plan.

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

Not sure if KD Ultra 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.

KD Ultra label
Go deeper

The Full Monographs Behind KD Ultra’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 → Herb & supplement monograph

Lipase

Lipase is a digestive enzyme that helps your body break down dietary fats. It is well established as part of prescription pancreatic enzyme therapy for people who cannot make enough of their...

Read the full Lipase monograph →
Sources

Sources & How We Checked

KD Ultra'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 12 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 →

Lipase 1 reference
  1. Casper C, Hascoet JM, Ertl T, et al. Recombinant bile salt-stimulated lipase in preterm infant feeding: A randomized phase 3 study. PLoS One. 2016;11(5):e0156071. PubMed

See these in context on the Lipase 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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