Calcium with vitamins D3 and K2 helps keep bones strong and heart health with bioavailable calcium and MK-7, all in a soy-free, USA-made formula from Dr Mercola. This everyday supplement combines organic eggshell calcium, chickpea-derived MK-7, and a vegetarian capsule to help calcium go where it’s needed. Made in the USA, soy-free and GMO-free, with none of the synthetic fillers you don’t want.

Available Sizes & Variants:

30 capsules – Daily serving for bone and heart health

Benefits & Features:

• Supports daily bone health.
• Vitamin D3 helps calcium absorb in the gut and maintain healthy serum calcium, while vitamin K2 directs calcium to bones and helps guard arteries from calcification.
• Bioavailable eggshell calcium helps calcium reach bones more efficiently within the body.
• MK-7 from chickpeas provides plant-based K2 to support bone and vessel health.
• Vegetarian capsule is easy to take daily, with no soy or unnecessary fillers.

Dr Mercola's calcium formula uses organic eggshell calcium to maximise bioavailability, paired with MK-7 from chickpeas for plant-based K2. The D3 supports calcium absorption, making this a practical vitamin d supplement for daily bone care. The product is soy-free, GMO-free, and produced in the USA in vegetarian capsules, reflecting allergen safety and quality that sets it apart from many calcium supplements for osteoporosis, aligning with a k2 vitamin with d3 approach.

Vitamin D3 (as Cholecalciferol), Vitamin K2 (as menaquinone-7 MK-7, from Chickpea), Calcium

• GTIN: 813006019941
• Manufacturer: Dr Mercola
• Categories: Best SellersBone & Joint Supplements & VitaminsCalcium SupplementsDr MercolaMinerals SupplementsNew Arrivals
• 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 one capsule daily with food. Mix one teaspoon with 8-12oz of filtered water

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

The Active Ingredient Is: Calcium (from Organic Eggshell)

Calcium is a key mineral involved in bone building and maintenance.

This formula uses calcium derived from organic eggshell and combines it with vitamins D3 and K2 to support calcium utilisation and bone mineralisation.

What Does Calcium Do?

Calcium participates in bone structure and supports normal bone health as part of daily physiology.

Vitamin D3 and Vitamin K2 in this formulation help optimise calcium absorption and deposition in bone, which aligns with EFSA and NHS guidance on nutrient function.

Dr. Knapen of Leiden University found that Vitamin K2 MK-7 can influence bone strength in clinical studies, supporting the role of calcium in bone tissue when paired with vitamin K2.

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

Dr Mercola stands out for its quality ethos and US-based production approach, emphasising purity and skipping unnecessary additives. This brand’s commitment to soy-free and GMO-free ingredients, alongside the use of organic eggshell calcium and MK-7 sourced from chickpeas, reflects a clear focus on bioavailable, high‑quality formulation principles that align with Welzo’s standards. Our choosing criteria favour manufacturers with transparent sourcing, strong current production practices, and a proven track record of product integrity, all of which Dr Mercola demonstrates through its emphasis on quality and purity.

Our doctors and nutritionists assessed Dr Mercola against our vetting framework, and this evaluation was conducted by our medical team to ensure alignment with Welzo’s expertise and safety expectations. The product's design—calcium from organic eggshell, vitamin D3, and MK-7 from chickpeas in a vegetarian capsule—fits well with Welzo’s emphasis on well‑structured, performative formulations. For transparency on testing and certifications, we reference our quality certification process, which underpins why this brand earned a Welzo selection for this supplement.