Vitamins D3 & K2 is a doctor designed supplement built to support heart, bone, respiratory and immune health, delivering an easy daily boost you can rely on. Active ingredients are vitamin D3 and K2, you know, with D3 supporting immune and bone health while K2 helps calcium utilisation in bones. Produced in NSF certified facilities, the product is soy-free, gluten-free and non-GMO, which is really nice indeed, reflecting the brand's commitment to purity and quality.

Available Sizes & Variants:

90 capsules of vitamins D3 & K2 - convenient daily dosage.

Benefits & Features:

• Bone health and calcium metabolism get support from D3 and K2.
• Supports immune function and daily vitality with vitamin D3.
• The star pairing supports calcium utilisation and arterial health, helping bone strength while potentially aiding arterial flexibility, thanks to MK-7 from chickpeas.
• Ideal for daily use, keeping intake steady with a simple capsule.
• Produced in NSF certified facilities with non-GMO soy-free ingredients and strict quality controls for these supplements.

Dr Mercola's commitment to quality shines through in this D3 and K2 blend. Vitamin K2 is supplied as MenaQ7, the patented MK-7 form derived from chickpeas for superior bioavailability and stability. The product is produced in NSF certified facilities with non-GMO soy-free ingredients and a transparent supply chain. The MK-7 form is chosen for its longer half-life, helping calcium work where it matters most, bone tissue, while supporting arterial health in daily life. Quality you can feel. K2 vitamin benefits are noted. Safe, trusted, reliable. Pure quality, every batch.

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the 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 30 days in the same original and unopened packaging. Subject to T&C's.

Please consult the product packaging for accurate instructions on how to use the product.

The Active Ingredient Is: Vitamin D3 (Cholecalciferol)

Vitamin D3, also known as cholecalciferol, is a fat-soluble vitamin essential for normal body functions related to bone and immune health.

This formula also includes Vitamin K2 in the MK-7 form derived from chickpeas, which supports calcium utilisation and arterial health alongside the D3 component.

What Does Vitamin D3 Do?

Dr. Bischoff-Ferrari of the University of Bern found that Vitamin D3 supports bone health and immune function in adults, aligning with evidence on maintaining healthy vitamin D status.

The nutrient helps the body maintain normal calcium and phosphorus levels and supports immune system function as part of a balanced healthy diet.

*This product is not intended to diagnose, treat, cure, or prevent any disease.

Dr Mercola brings a well‑established track record of quality manufacturing and transparent ingredient sourcing that aligns with our high standards for this product. The brand’s manufacturing excellence is backed by facilities that are third party certified for content accuracy, purity, and safety, strengthening our confidence in consistent quality.

Dr Mercola Vitamins D3 & K2 shows product specific capability with premium ingredients including MK-7 sourced from chickpeas and a doctor‑designed approach to simple clean formulations. The brand emphasises premium inputs, non-GMO and allergen aware options, and clear sourcing with third party verification, which aligns with Welzo’s commitment to traceable quality and safety. This mix supports our selection criteria for rigorous testing and transparency how we verify ingredient quality.

Our team of medical experts and our evaluation process judged Dr Mercola as a solid partner for this supplement due to its rigorous quality standards and clinician level formulation. For more on how we evaluate suppliers, see our team of medical experts and our thorough vetting approach. Put simply, the brand credibility, testing practices, and product integrity underpin our trust in this partnership.