Healthy vitamin D levels finally!
5 out of 5 star rating. 
Fuel Your Body for the Day!
of people are vitamin D deficient. Vitamin D plays an essential role in bone, heart and immune health, and works 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
Gluten-Free
Vegetarian
Isotonic
Non-GMO
Key Ingredients & Benefits
Vitamin K2
Helps in the development and maintenance of bones and teeth
Helps in the absorption of calcium and phosphorus
Factor in the maintenance of good health
Vitamin D3 (Cholecalciferol)
Promotes calcium absorption
Promotes development and maintenance of bones
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 are vitamins K and D included in Isotonix™ Vitamin K2 with D3?
Vitamins K and D are paired together due to their unique partnership. Vitamins K and D work together to promote healthy calcium absorption and utilization.
Is Isotonix Vitamin K2 with D3 safe for people on anti-coagulant medications?
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.
Is it safe to take more than one serving of this product daily?
One serving daily of Isotonix Vitamin K2 with D3 is recommended. Check with your health care practitioner before taking additional daily servings of this product.
What are dietary sources of vitamin D?
Foods rich in vitamin D include cod liver oil, salmon, mackerel and tuna.
Scientific Research
Reviews
Break down of ratings: (70) 5 star ratings. (5) 4 star ratings. (1) 3 star ratings. (0) 2 star ratings. (0) 1 star ratings.
would recommend this product.
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I have a history of skin cancer in my family, So I unfortunately, cannot get my vitamin D from the sun but this product is the next best thing! The absorption is unlike any other vitamin D supplement out there. For the first time ever, my vitamin D levels in my blood are in the normal range.
Response from Customer Service on 08/31/2024
Thank you so much for your fantastic review of Isotonix® Vitamin K2 with D3! We're delighted to hear that it has helped you achieve healthy vitamin D levels. Your feedback about the superior absorption is greatly appreciated. It's wonderful to know that Isotonix® Vitamin K2 with D3 is making a positive difference in your wellness routine. Thank you for sharing your experience and for choosing our product!
Isotonix
5 out of 5 star rating.
This is a great product, It helps me every day with more Energy and keeps me going!!!
Response from Customer Service on 03/06/2024
Dear Valued Customer,
Thank you for sharing your positive feedback with us! We're delighted to hear that you're enjoying the Isotonix® Vitamin D with K2 and experiencing the great benefits. Your feedback means a lot to us and it's always great to receive such kind words. If you have any questions or need further assistance, feel free to reach out to us anytime.
Thank you again,
The Product Information Team
Frist time using this and I just love it.
5 out of 5 star rating.
Love this product and i can see the different right away, and it taste good.
Response from Customer Service on 02/17/2023
Dear Valued Customer,
Thank you for taking the time to share your thoughts on the Isotonix® Vitamin D with K2! We are so happy to hear you are pleased with the product!
Thank you again!
The Product Information Team
Shoppers found this review helpful
Isotonix Vitamin D with K
5 out of 5 star rating.
Absolutely an awesome supplement! Another wonderful supplement for Optimal Health.
Response from Customer Service on 07/20/2022
Dear Valued Customer,
Thank you for taking the time to share your thoughts on the Isotonix® Vitamin D with K2! We are so happy to hear you are pleased with the product!
Thank you again!
The Product Information Team
For those who don't like to go under the sun.
5 out of 5 star rating.
I love this D3 with K2 suppliment very much, as i hate to go under the sun and always stay in door, so i started this vit D for awhile.
When i went for a routine body check-up, my doctoc said that my D vit showed better then him. :)
Love the taste too.
Response from Customer Service on 06/16/2022
Dear Valued Customer,
Thank you for taking the time to leave your thoughts on the Isotonix® Vitamin D with K2. We are happy to hear you are pleased with the product.
Thank you again! Market Singapore Product Team
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