Portions Master Vitamin D3 5000 IU + K2 MK-7, Bone & Heart (60 Capsules)

For optimal calcium metabolism, the combination of vitamin D3 and vitamin K2 is widely recommended by UK health professionals. These two nutrients work synergistically to ensure that calcium from your diet is not only absorbed but also directed to your bones and teeth, while helping to prevent calcium build-up in soft tissues. This balance is crucial for maintaining strong bones and a healthy cardiovascular system as you age.

How Do D3 and K2 Work Together?

At the cellular level, vitamin D3 (cholecalciferol) enhances the production of calcium-binding proteins in the intestines, promoting calcium uptake. Vitamin K2, particularly as menaquinone-7 (MK-7), activates two key proteins: osteocalcin, which binds calcium to the bone matrix, and matrix Gla protein (MGP), which helps prevent calcium deposition in arterial walls. The MK-7 form is preferred as it remains active in the bloodstream longer than MK-4, offering more sustained support. This complementary mechanism ensures calcium is properly utilised throughout the body.

Key Health Benefits

• Bone health: Both vitamin D3 and K2 contribute to the maintenance of normal bones. Vitamin D3 also aids normal calcium absorption and utilisation.
• Cardiovascular health: By activating MGP, vitamin K2 helps direct calcium away from arteries, supporting normal blood vessel function.
• Immune function: Vitamin D3 contributes to the normal function of the immune system.
• Dental health: Proper calcium metabolism supports healthy teeth, with K2 aiding calcium delivery to tooth enamel and dentin.

Choosing a Quality D3 and K2 Supplement

When selecting a supplement, consider dosage and form. An effective daily dose of vitamin D3 ranges from 10 to 50 mcg (400–2000 IU), but for higher needs up to 125 mcg (5000 IU) as in this product. For vitamin K2, look for MK-7 at 45–100 mcg, as it offers superior bioavailability. Choose a product that is non-GM, gluten-free, dairy-free, and free from artificial additives. Third-party testing for purity adds confidence. This supplement provides 125 mcg (5000 IU) vitamin D3 and 100 mcg MK-7 in a small capsule.

Why Combine Them?

Taking vitamin D3 and K2 together ensures that the calcium absorbed thanks to D3 is properly utilised by K2. Without adequate K2, calcium may not be directed to bones and teeth, potentially leading to soft tissue calcification. This combination is especially beneficial for those focused on bone density and cardiovascular health as they age.

Recommended Dosage

Take one capsule daily with a meal containing fat to aid absorption. Each capsule provides 125 mcg (5000 IU) vitamin D3 and 100 mcg vitamin K2 (MK-7). Do not exceed the recommended dose. If you are on anticoagulant medication (e.g., warfarin), consult your health care professional before taking vitamin K2.

Frequently Asked Questions

Can I get enough vitamin D from sunlight? In the UK, sunlight is limited, especially in winter, so supplementation is often recommended to maintain adequate levels.

Is it safe to take this supplement long-term? Yes, at recommended doses it is safe for long-term uses, but periodic monitoring of vitamin D levels is advisable.

Can I take it with other supplements? Yes, but avoid high-calcium supplements unless advised by a health care professional, as this combination already supports calcium metabolism.

Is this suitable for vegans? No, because vitamin D3 in this product is derived from lanolin (sheep's wool). Vegan alternatives using vitamin D3 from lichen are available.

These statements have not been evaluated by the Medicines and Health care products Regulatory Agency (MHRA). This product is a food supplement and is not intended to diagnose, treat, , or prevent any disease.