Vitamin D3 and K2 is a vitamin supplement that supports calcium metabolism, bone health, and heart function by pairing vitamin D3 with vitamin K2 MK-7. From Metabolics, a UK-based brand known for strict quality standards, the formulation uses the all-trans MK-7 for improved bioavailability and is designed for daily use with meals to maximise absorption. Metabolics champions clean, transparent formulations.

Available Sizes & Variants:

90 capsules – Daily dose for reliable daily support.

Benefits & Features:

• Supports bone health through calcium metabolism.
• Vitamin D3 supports calcium absorption and immune function.
• K2 MK-7 directs calcium into bones and supports arterial health.
• UK produced and third party tested for purity and quality.
• The star pair works together to support calcium metabolism and bone strength, with MK-7 bioavailability enhanced by natural fermentation, and daily dosing fits neatly into meals for steady, reliable support.

Metabolics D3 & K2 is proudly made in the UK with third party testing for purity and quality, underscoring our commitment to safety and transparency. The all-trans k2 vitamin MK-7 is produced by natural fermentation, boosting bioavailability and ensuring you get the most from each daily capsule. Dr. Michael Holick of Boston University Medical Campus has shown that 1,000 IU of vitamin D3 daily supports bone health, making this vitamin d supplement a solid foundation for wellness and can sit alongside probiotics for gut health.

Cellulose, Hydroxypropyl Methylcellulose (capsule), Menaquinone 7, Maltodextrin, Cholecalciferol

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• Manufacturer: Metabolics
• Categories: Back to School Supplements & EssentialsMetabolicsNew ArrivalsVitamin D Supplements, Tablets & Gummies
• Best buy: 6 - 24 months+

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.

It is suggested to take one capsule daily with a meal. However, it is important to follow the instructions of your healthcare professional if they recommend a different dosage. Do not exceed the recommended amount and make sure to consume the supplement within 3 months after opening.

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

1. Supports bone health: Vitamin D3 and K2 work synergistically to promote strong and healthy bones. Vitamin D3 aids in the absorption of calcium, while vitamin K2 helps to direct calcium to where it is needed in the body, such as the bones. This can help prevent conditions like osteoporosis and improve overall bone density.
2. Boosts immune function: Both vitamin D3 and K2 play important roles in maintaining a strong immune system. Vitamin D3 helps regulate immune cell function and can help fight off infections, while vitamin K2 supports the production of a protein that helps regulate the immune response. This can help keep the body healthy and better equipped to fight off illnesses.

The Active Ingredient Is: Vitamin D3 (Cholecalciferol)

Vitamin D3 is a fat-soluble vitamin, essential for healthy bones and immune health.

This form refers to cholecalciferol, the widely used version of vitamin D3 in supplements.

What Does Vitamin D3 Do?

Vitamin D3 helps regulate calcium uptake and supports bone structure and immune function, in line with EFSA and NHS recommendations.

Dr. Holick of Harvard University noted that vitamin D helps keep calcium balance and immune health in check, underscoring its role in everyday body function.

This supplement isn't intended to diagnose, treat, cure, or prevent any disease.

Welzo picks partners who meet our exacting standards for quality, safety and transparency. Metabolics is a UK-based brand with a clear dedication to manufacturing excellence inside UK and European regulatory frameworks, and the product goes through independent, third-party testing for purity and quality. This combination of local production together with external verification fits our preference for tight oversight and real-world traceability. Welzo's healthcare professionals personally assess brands like Metabolics to ensure they meet our ingredient quality criteria, including thorough testing and compliance measures. We continue this assessment with our dedicated quality review process, described in detail at how we verify ingredient quality to confirm every batch meets our standards.

What made Metabolics stand out for Vitamin D3 & K2 is their UK manufacturing heritage and the brand's emphasis on pairing fat-soluble vitamins with clear, evidence-based formulations. This product uses a specific all-trans MK-7 form and a 1,000 IU/25 µg dose that suits the UK context, with third-party testing underpinning their quality promise. This brand’s approach to purity and reliability makes it a natural fit for a supplement meant to support calcium metabolism and bone health while lining up with Welzo’s rigorous vetting criteria.