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Vitamin K2 + D3
K2 + D3
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    • Picture of Person, Human, Medication with text SUPPORT HEALTHY CALCIUM ABSORPTION CLINICAL EFFECTS 6...
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    Vitamin K2 + D3

    Clinical Effects K2 + D3 is a health and immune supporting complex of vitamins K2 and D3 with Calcium Carbonate and pure BioPerine® for long-term health benefits.

    Vitamin K2 + D3

    "Clinical Effects Vitamin K2D3 is a game-changer, has helped maintain my bone health!"

    - Clinical Effects Customer

    Express Checkout

    100% No risk money-back guarantee!

    • 180-day money-back guarantee
    • 5% Rewards on all purchases
    • Highest quality ingredients

7 Powerful benefits

Here are 7 science-backed reasons to try us out today.



Give your bones the calcium they need along with the tools they need to absorb it.



Support healthy immune system function.



Support your heart and cardiovascular system with K2 + D3!

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Vitamin D3 is known to play a key role in healthy energy levels.



Healthy vitamin D levels for positive mood support.

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Support your all-around health across multiple vital systems in the body.

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K2 + D3 features science-backed ingredients to safely support your health.

What's Inside Vitamin K2 + D3


Vitamin D3

Vitamin K2

(Black Pepper Fruit Extract)

Bring Your Foundational Health Into Focus

  • Promotes Strong Bones
    Our skeletal structure is built on the health of our bones. Our bones require specific chemicals and minerals to function at their best. Clinical Effects Vitamin K2 + D3 includes potent natural ingredients like vitamins K2 and D3 with Calcium Carbonate and more to create the ideal blend for strong and healthy bones.
  • Supports A Healthy Immune System
    There are multiple ways to support our immune system, including exercising, eating a healthy diet, and consuming the right supplements. Vitamin K2+D3 supports the body in maintaining a robust immune system.
  • Aids Circulatory and Heart Health
    Our heart health determines much of the rest of our body’s health. Keeping blood pumping to all our major organs is critical to our well-being. Clinical Effects’ Vitamin K2+D3 supplement helps your body maintain a healthy circulatory system.
  • Assists in Calcium Absorption
    Both Vitamins K2 and D3 help our bodies absorb calcium properly. Calcium is critical in creating strong bones and a healthy heart and circulatory system. These vitamins also help our bodies absorb calcium the right way.
  • Benefits Brain Health
    Keeping your brain healthy is undoubtedly a priority. However, our command centers require specific minerals to function at their best. Clinical Effect’s Vitamin K2+D3 supplement provides powerful support for optimum brain health.
  • Promotes strong healthy bones
  • Supports a healthy immune system
  • Promotes heart and circulatory health
  • Aids in proper calcium absorption

Why Customers Love Clinical Effects Vitamin K2 + D3

  • "The only side effects I've had with this has been pure happiness and strength. Absolutely love it."

    Ashley Collins

  • "It's the smart easy way to improve immunity during these challenging times."

    MJ Wolfe

  • "Five days later, I felt so much different after I would work out."

    Heather Cooper

  • "After I started using it. I felt less achy, more energy, more positive, like in a better positive mood."

    Sidalia Aguilar

More About The Product

  • Directions

    As a dietary supplement take one (1) veggie capsule twice a day. For best results take 20-30 min before a meal with an 8 oz. glass of water or as directed by your Healthcare Professional. Caution: Do not exceed recommended dose. Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical condition should consult a physician before using this or any dietary supplement.

  • Shipping Info

    Do You Ship Worldwide?
    We currently only ship to the United States and Canada.

    When Can I Expect My Order?
    Once you place your order, the warehouse ships it within 48 hours. You should receive it within 3 - 5 days post shipping.

    Will I Have To Pay Taxes And Duties?
    This depends on the state you reside in. In most cases your order covers all costs.

    I’m Having Problems Tracking My Order.
    Please look for an email with a tracking link from USPS. In case you cannot find it, please get in touch with us and we'll help you out.

    What Is Your Return Policy?
    We offer a 180-day money-back guarantee with all of our orders. Request a return within 180 days if you are not satisfied.

    How Long Do Refunds Take To Process?
    As soon as we receive your return, the refund will be processed. Zero delays (unless it's a weekend)

    What Should I Do If I Received The Wrong Order?
    Please get in touch with our customer service team and they will ship the correct product at no cost to you.

More questions? Find answers on our FAQs page.

Reviews / Q&A

Product reviews are provided for informational purposes only and reflect solely the views and not those of Clinical Effects. We do not verify or endorse any claims made in these reviews. Please read the full product reviews disclaimer.

      • MGL21
        Checkmark icon

        Verified Purchase

        My Vitamin D was well below average. After taking this supplement for a few months, my Vitamin D is above average and doing great. So glad I found it.

        Submitted on

      • Kathy
        Checkmark icon

        Verified Purchase

        I waited for awhile to sent review to see if my D3 levels were back to normal. Great news..my numbers are back to normal. 

        Submitted on

      • Frank
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        Verified Purchase

        The products are great and the friendly, knowledgeable and efficient customer service agents are just outstanding!😊

        Submitted on

      • Nan
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        Verified Purchase

        This product has the best balance of nutrients that I have found. Highly recommended.

        Submitted on

      • How Do I Use K2+D3?
        As a dietary supplement take one (1) veggie capsule twice a day. For best results take 20-30 min before a meal with an 8 oz. glass of water or as directed by your Healthcare Professional. Caution: Do not exceed recommended dose. Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical condition should consult a physician before using this or any dietary supplement.
      • What is K2 + D3?
        K2 + D3 is a dietary supplement formulated to promote a variety of health benefits including immune system support, stronger bones, as well as heart and brain health. Specifically, it supports the health-promoting benefits of Vitamin D are utilized while helping to protect the body's soft tissues from the dangerous impacts related to Calcium saturation.
      • Why is K2 + D3 better than just D3?
        Most diets only contain trace amounts of the critical mineral Calcium. One of the ways that Vitamin D works is by helping your body's absorption of Calcium to keep it at high enough levels throughout the body. This is great for strong tissues like bones and teeth, but it can be detrimental to soft tissues like arteries where the hardening effects of calcification can lead to other medical issues. Nevertheless, Vitamin D plays a key role in numerous aspects of basic health and is therefore one of the most important vitamins recommended by doctors for daily supplementation. A deficiency in Vitamin D causes serious problems, but having too much Calcium in soft tissues also comes with risks. For this reason, Vitamin K2 is taken in combination with Vitamin D3 to ensure that Calcium reinforces your body's hard tissues while at the same time protecting your soft tissues from calcification.
      • How do I know if I’m deficient in Vitamin D?
        Upwards of 40% of adults are deficient in Vitamin D which poses a range of health risks including obesity, a weakened immune system, bone and tooth deterioration, and other issues like high blood pressure. If you are concerned about a possible deficiency, speak with your doctor about getting blood work done to determine the levels of important vitamins, minerals and nutrients in your body.
      • How does K2 + D3 work?
        K2 + D3 works by combining the power of Calcium, Vitamin D3 and Vitamin K2 to deliver wide-ranging health benefits available through dietary supplementation without the typical risks associated with calcification of soft tissues. Vitamin D is a vitamin that plays an important role in your health but must be modulated by Vitamin K2’s protection of soft tissues. K2 + D3 can support long-term health and vitality.
      • Does K2 + D3 cause any side effects?
        Most people do not experience side effects when using K2 + D3. If you have any questions, feel free to contact customer support. If you are concerned about possible contraindications with prescription medications or you have any serious medical conditions, speak with your physician before trying K2 + D3 or any dietary supplement.
      • I have a well-rounded diet. Do I still need K2 + D3?
        A great diet definitely supports optimal health, but countless basic nutrients are not available in substantial amounts through food. For example, many vegetables are grown in soil that once had vibrant mineral profiles (including Calcium), but after centuries of agriculture the minerals have been largely depleted. For that reason and many others, dietary supplements are recommended as a simple way to boost your health.
      • How soon will it start working?
        K2 + D3 starts working as soon as it enters your bloodstream. This takes approximately 20-60 minutes from consumption as the synergistic effects of Calcium, Vitamin D and Vitamin K2 can begin supporting various physiological systems and processes in the body. Many people feel the effects the first time they take K2 + D3, and can continue experiencing health improvements over time.
      • Is this product safe?
        Yes! K2 + D3 is formulated with high quality ingredients indicated as being safe for consumption by the FDA. We mix and bottle our products in FDA-Regulated facilities with rigorous quality controls at multiple points in the production process. If you are pregnant or nursing, consult with your physician before taking K2 + D3.
      • What are all the ingredients in K2 + D3?
        K2 + D3 contains four simple active ingredients: (1) Vitamin D3 as Cholecalciferol, (2), Vitamin K2, (3) Calcium Carbonate, and (4) BioPerine® to amplify the benefits of the other three compounds.
      • Can I get K2 + D3 in stores?
        K2 + D3 is exclusively available through Clinical Effects online. We are able to maintain such high quality standards and such competitive pricing by eliminating “middleman stores” and passing the savings onto our customers.
      • Will K2 + D3 reverse my medical condition?
        While K2 + D3 provides wide-ranging health benefits, it is designed to promote and maintain optimal health rather than treating any disease. If you have a serious medical condition, it is important to speak with a doctor before taking any new dietary supplement.

Clean, Safe Ingredients

We're committed to developing products that are free from harmful ingredients.


Paraben Free


Sulfates Free


Cruelty Free


Plant Based



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