Vitamin D3 and K2 is a potent bone support blend that helps calcium move into bones and supports immune function. Designed in the UK by Metabolics, a family run brand known for careful quality control. The formula uses bioavailable D3 and MK-7, plus vegan-friendly options, to support bone density, calcium balance, and healthy immune function. Dr. Vermeer of Wageningen University found that taking vitamins D and K together helps direct calcium to bones.

Available Sizes & Variants:

90 capsules Vitamin D3 and K2 - daily support for bone and immune health.

Benefits & Features:

• Supports bone health in your vitamin d supplement routine by promoting calcium uptake for stronger bones daily.
• D3 opens the doorway for calcium to be absorbed, while K2 directs it to bones, helping sustain bone density and supporting heart health and overall mobility.
• Fermented MK-7 supports bone mineralisation.
• Daily capsule design fits easily into your routine, you know, helping you stay consistent.
• Made in a UK clean room under good manufacturing practice and ISO accreditation, Metabolics blends careful sourcing with third party testing to deliver reliable, high quality supplements, you know.

Metabolics is a family run UK manufacturer known for quality and transparency. The vitamin D3 is sourced as algae-derived D3 for vegan options, while MK-7 is naturally fermented. In addition to GMP and ISO accreditation, products are produced in a UK clean room facility and undergo third party testing for purity, making it a sensible addition to osteoporosis and calcium supplements.

Vitamin D3, Vitamin K2, Cellulose, Hydroxypropyl Methylcellulose (capsule), Menaquinone 7, Maltodextrin Cholecalciferol.

• GTIN: 766536034505
• 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.

Take 1 capsule daily with food. Your healthcare practitioner may adjust this dose if needed. Do not exceed the recommended dose. Use within 3 months of opening.

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 nutrient essential for normal calcium metabolism and immune function.

This form is commonly sourced as bioavailable vitamin D3 and is paired with Vitamin K2 in this product to support calcium handling and bone health pathways.

What Does Vitamin D3 Do?

Vitamin D3 helps regulate calcium absorption in the gut and supports immune function in line with NHS and EFSA context. It plays a role in maintaining normal bone structure and mineral balance.

In this formulation, Vitamin K2 MK-7 complements D3 by directing calcium to the bones, a combination discussed in the scientific context surrounding bone and cardiovascular health.

References to the synergistic action come from research led by Dr. Vermeer of Wageningen University, which highlights the interaction of D3 with K2 in bone and vascular contexts.

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

Metabolics stands out for quality right from the ground up. The brand runs a UK clean room facility and maintains strong quality management and environmental standards, which signals a disciplined, transparent approach to manufacturing and sustainability that resonates with Welzo’s commitment to safety and reliability.

Our vetting process emphasises brand credibility, heritage, and manufacturing philosophy. Metabolics is a family‑owned UK manufacturer focused on delivering high‑calibre supplements with careful material sourcing and research‑driven formulation choices, including fermented MK‑7 and vegan algae‑derived D3 options. Their emphasis on naturally fermented, clean‑source ingredients supports a clear quality narrative that our team recognises and trusts, reinforced by routine third‑party testing for purity and quality assurance.

This partnership is driven by a shared focus on traceable quality, practitioner‑level involvement, and consistent compliance with our ingredient quality and purity standards. Welzo selected Metabolics because their established heritage, rigorous production controls, and commitment to plant‑based compatibility align with the needs of Vitamin D3 and K2 supplementation, ensuring a trusted match for our customers. For our medical team insights, see our medical team, and for quality benchmarks, our ingredient quality and purity standards.