Love this product!
5 out of 5 star rating. 
Fuel your body for the day ahead!
68%
of people are vitamin D deficient. Vitamin D plays an essential role in bone, heart and immune health, working with vitamin K to support absorption of calcium and healthy arteries.
10,000 IU
Recommended daily upper limit of vitamin D
Shine Bright With Essential Support
Vitamin D3 (cholecalciferol) Vitamin D plays an important role in bone health, heart health and immune support while working with vitamin K to support normal absorption of calcium and promote healthy arteries. Vitamin D is a fat-soluble vitamin that is found in some foods and endogenously produced when sunlight strikes the skin and activates vitamin D synthesis.
Product Classification
Isotonic
Vegetarian
Gluten-Free
Dairy Free
Non-GMO
Good Manufacturing Practices
Directions for use
Pour 1 level capful of powder into the measuring overcap of the white bottle.
Add water to the line in overcap (2 fl. oz/60 mL) and stir.
Enjoy once a day; for maximum absorption, take on an empty stomach.
Key Ingredients & Benefits
Vitamin K2*
Supports normal delivery of calcium to the bones
Promotes healthy arteries and elasticity of blood vessels
Helps maintain bone mass
Supports calcium utilization
Vitamin D3 (Cholecalciferol)*
Supports immune health
Helps maintain bone mass by supporting normal osteoclast activity
Helps maintain normal blood pressure
Helps maintain bone health
Benefits Beyond Your Bones
Isotonix® Vitamin D with K2 is the first of its kind to deliver both of these powerful vitamins with isotonic delivery. The unique relationship between vitamn K and D enables support for calcium absorption and utilization.
Isotonix Delivery System
:05 minutes
Isotonix Liquid Vitamins
- Formulated to survive digestion.
- Delivers concentrated nutrients to the site of absorption.
- Contains no fillers or binders.
- No artificial color or flavors.
:40 minutes
Standard Vitamin Tablet
- Contains lab-created coatings and lubricants.
- Often contains artificial colors, nutrients and flavors.
- Limited absorption of nutrient utilization.
Frequently Asked Questions
Why is vitamin K included in Isotonix Vitamin D with K2?
Vitamin K is included in this product because of its unique partnership with vitamin D. Vitamins K and D work together to promote healthy calcium absorption and utilization. Vitamin K supports the delivery of calcium to the bones and helps maintain arterial health.*
Is Isotonix Vitamin D with K2 safe for people on anti-coagulant medications?
Some studies have concluded that vitamin K2 does not interfere with anticoagulant medications; however, most products containing vitamin K (including K1 and/or K2) warn users taking anticoagulants not to take the product. If you are currently taking warfarin or another anticoagulant medication, you should consult your physician before taking any product containing vitamin K1 or K2.
How do I take Isotonix Vitamin D with K2?
Mix one capful of Isotonix Vitamin D with K2 with 2 ounces of water. Take one serving daily.
Is it safe to take more than one serving of this product daily?
One serving daily of Isotonix Vitamin D with K2 is recommended. Check with your physician before taking additional daily servings of this product.
Is there a toxicity level for vitamin D?
The recommended daily Upper Limit for vitamin D is 10,000 IU; however, safety studies indicate that up to 40,000 IU may be safe for most people. If you wish to take more than one daily serving of this product, you should check with your physician.
What are dietary sources of vitamin D?
Foods rich in vitamin D include cod liver oil, salmon, mackerel and tuna.
Research Scope
Product Label Details
*These statements have not been evaluated by the Food and Drug Administration. This product(s) is not intended to diagnose, treat, cure or prevent any disease.
Reviews
Break down of ratings: (106) 5 star ratings. (9) 4 star ratings. (0) 3 star ratings. (1) 2 star ratings. (1) 1 star ratings.
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The BEST! I take this everyday, tastes fantastic. ~ 75% of people are deficient in Vitamin D so this is an absolute must. Every cell in your body has a Vitamin D receptor, so it’s one of the most important supplements. I’m an employee and an UnFranchise owner.
Response from Customer Service on 12/16/2024
Thank you for your enthusiastic review of Isotonix® Vitamin D with K2! We're thrilled to hear that you love the product and enjoy taking it every day. It's great to know that you find it fantastic in taste and recognize its importance. Thank you for sharing your positive experience and for being an integral part of our community!
Sunshine in a bottle
5 out of 5 star rating.
I was on Vitamin D with K2 two servings a day for the past 3 months. I ran out of vitamin D and had to wait for my next shipment to come in. After about 2 weeks, I started back up and after just a few hours of taking the first serving after that break, I felt great and like my life is full of sunshine. I will not miss any time again.
Response from Customer Service on 11/26/2024
Thank you for your delightful review of Isotonix® Vitamin D with K2! We're so pleased to hear that the product brings a "sunshine" feeling to your life and that you can feel the positive effects so quickly. Your story about experiencing the difference is truly appreciated. Thank you for your continued trust in our product and for sharing your radiant experience with us!
this product is OUTSTANDING!
5 out of 5 star rating.
I love my Isotonix vitamin D with K2! So good! It helps me feel my best, I call it my cup of sunshine. I am happier too when I take it. My vitamin D levels are in a great range too since I have been taking this product. My whole family loves it and we don't go without our Vitamin D with K2
Response from Customer Service on 10/02/2024
Thank you so much for your enthusiastic review of nutraMetrix Isotonix® Vitamin D with K2! We're thrilled to hear that it's your "cup of sunshine" and that it helps you feel your best. It's wonderful to know your whole family enjoys it too. If you have any questions or need assistance, please feel free to reach out. Thank you for choosing and sharing the joy of Isotonix®!
Really Boosts Your Levels!
5 out of 5 star rating.
This is so yummy AND raised my Vitamin D levels so quickly!
Response from Customer Service on 08/31/2024
Thank you for your fantastic review! We're thrilled to hear that you find Isotonix® Vitamin D with K2 both delicious and effective in supporting your Vitamin D levels. Your satisfaction and health are incredibly important to us, and we're delighted to be a part of your wellness routine. If you have any further feedback or need assistance, please don't hesitate to reach out. Thank you for choosing Isotonix® Vitamin D with K2!
Love it!
5 out of 5 star rating.
This Vitamin D with K2 made a huge impact!
Response from Customer Service on 08/31/2024
Thank you for your succinct and positive review! We're thrilled to hear that our Vitamin D with K2 has made a huge impact for you. Your feedback is greatly appreciated, and we're happy to be a part of your wellness journey. Thanks for sharing your experience!
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