
"Very quick delivery. Used 3 times, each order arrived the next day before 12:00. Product quality is exactly as described."
"Reliable & original products, with fast next day delivery. Have been using Welzo for over a year now."
"Welzo is great, lots of support from customer service who are easy to get a hold of and quick delivery."
Carlson Labs Vitamin D3 + K2 - 60 caps
Carlson Labs Vitamin D3 + K2 offers a sturdy, synergistic daily supplement that backs bone health and immune support in daily life.
Purchase options
Subscribe & save
Save 5%Fast delivery · Cancel anytime
- Easy Pause or Cancel
- Best Price Guarantee
- 60-Day Returns
- Priority Support
One-time purchase
Standard price, no subscription
Quantity
100% Money back guarantee, no questions asked
Secure Transaction
Carlson Labs Vitamin D3 + K2 offers a sturdy, synergistic daily supplement that backs bone health and immune support in daily life. Carlson Labs has a long-standing heritage of quality and openness, and this vitamin duo supports calcium metabolism. As Dr. Holick from Harvard University notes, vitamin D supports immune function and calcium metabolism.
Available Sizes & Variants:
60 capsules provide a standard container for ongoing use.
Benefits & Features:
- Supports bone health with D3 and K2.
- K2 vitamin MK-7 activates proteins that direct calcium to bones, supporting stronger bone structure.
- Supports immune function alongside bone health, a key part of daily nutritional supplements for overall wellbeing.
- Designed for optimal absorption when taken with a meal containing fat, the blend maximises the body's uptake of vitamin D3 and K2, making it a trusted vitamin d supplement choice.
- Gluten-free and vegetarian friendly, making it suitable for a wide range of dietary needs.
Carlson Labs has a long standing heritage of quality and transparency in supplement making. This formulation uses MenaQ7 vitamin K2 MK-7, a clinically studied, soy free form, paired with vitamin D3 to support bone health and immune function. The product is gluten-free and vegetarian, reflecting Carlson's commitment to accessible nutritional supplements. Research from Dr. Geleijnse at Erasmus University Rotterdam linked higher vitamin K2 intake with reduced coronary calcification, underscoring the heart health potential of the D3 + K2 duo.
United Kingdom & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched next working day).
Free shipping on orders over £50 to the UK.
Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 14 days in the same original and unopened packaging. Subject to T&C's.
Welzo is a UK-based health platform. Orders ship from the UK.
Please consult the product packaging for accurate instructions on how to use the product.
| Amount Per Serving | %RI* | |
|---|---|---|
| Vitamin D3 (as cholecalciferol) | 50 µg | 250% |
| Vitamin K2 as MK-7 (menaquinone-7) | 90 µg |
*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
The Active Ingredient Is: Vitamin D3 (Cholecalciferol)
Vitamin D3, also known as cholecalciferol, is a fat-soluble vitamin essential for normal bodily functions related to calcium metabolism and immunity.
This form is presented as cholecalciferol to support the body’s normal vitamin D activity; the preparation may include additional ingredients to aid stability and absorption.
What Does Vitamin D3 Do?
Vitamin D3 participates in calcium absorption and contributes to normal immune system function, aligning with health guidance on bone and immune health.
Dr. Holick of Harvard University found that this dosage can help maintain adequate vitamin D status in adults, supporting overall physiological function according to established guidelines.
This product is not intended to diagnose, treat, cure, or prevent any disease.
Carlson Labs stands out for its long-standing commitment to quality and openness, making it a natural partner for Welzo. This brand is trusted for using MenaQ7 vitamin K2 MK-7 in this formulation, a clinically studied ingredient source, and for clearly naming its vegetarian, soy-free, gluten-free profile so shoppers can buy with confidence. We value Carlson Labs' attention to ingredient origin, including vegetable-sourced magnesium stearate, which fits with our sourcing ethos. This focus on traceable ingredients and stability supports a dependable, consistent product experience that our team can stand behind. For those after a well balanced D3 plus K2 blend, Carlson Labs offers a thoughtfully designed delivery that aligns with our quality standards and shopper expectations. Our vetting process, including review by Welzo's healthcare professionals and assessment of our quality certification process, reinforces why this brand fits Welzo's brand criteria.
Part of the Welzo System™
Test, supplement, enhance, and move, all in one place.
Frequently Asked Questions
Everything you need to know about this product.



