SOLARAY Vitamin D3 + K2, D & K Vitamins for Calcium Utilisation and Support for a Healthy Cardiovascular System & Blood Vessels, Non-GMO & No Soya

What to Look For in a D3 + K2 Supplement

Not all D3 and K2 supplements are created equal. When choosing one, consider the dosage ratio: a common effective combination is 5000 IU of D3 with 50–100 mcg of K2 as MK-7. Solaray provides 5000 IU D3 and 50 mcg K2 (MK-7), a well-balanced ratio. The form of K2 matters too – MK-7 is preferred for its longer half-life, keeping it active in the body longer. Solaray uses MK-7 sourced from chickpea fermentation, which is also vegan-friendly. Purity is key: look for non-GMO, soya-free, and no artificial additives. Solaray meets these standards and uses eco-friendly packaging with 100% PCR bottles made from ocean-bound plastics. Third-party testing ensures potency and purity.

Understanding the Synergy: How D3 and K2 Work Together

The relationship between vitamins D3 and K2 is rooted in calcium metabolism. When you consume calcium, vitamin D3 helps increase its absorption in the intestines. However, the absorbed calcium needs direction – and that's where vitamin K2 comes in. K2 activates proteins such as osteocalcin and matrix GLA protein (MGP). Osteocalcin helps bind calcium into the bone matrix, while MGP helps maintain proper calcium balance in the blood vessels. Without enough K2, calcium deposited by D3 may end up in the wrong places, potentially contributing to arterial rigidity. By taking them together, you support a balanced calcium utilisation process that promotes skeletal strength and cardiovascular health.*

• Vitamin D3 (5000 IU): Derived from lanolin, contributes to normal absorption and utilisation of calcium and phosphorus and to the normal function of the immune system.
• Vitamin K2 (50 mcg as MK-7): Sourced from chickpea fermentation, contributes to normal blood clotting and the maintenance of normal bones.

Key Health Benefits

Immune System Support

Vitamin D3 is well known for its role in immune health. It contributes to the normal function of the immune system, helping the body's defences against seasonal challenges. Adding K2 does not interfere with this benefit, making the combination a convenient all-in-one supplement.

Bone Health Support

Calcium is essential for strong bones, but it requires vitamins D3 and K2 to be properly utilised. D3 contributes to the normal absorption and utilisation of calcium, while K2 contributes to the maintenance of normal bones. This dual action supports bone mineral density and helps maintain skeletal strength as you age.*

Heart and Vascular Health

By activating matrix GLA protein, vitamin K2 contributes to the maintenance of normal blood vessels. This supports healthy calcium metabolism and helps maintain arterial flexibility, contributing to normal cardiovascular function. Combined with D3's role in regulating calcium, this duo helps maintain a healthy circulatory system.*

Convenience and Purity

Solaray's formula is non-GMO, soya-free, and encapsulated in vegetable capsules. The eco-friendly packaging uses 100% PCR bottles from ocean-bound plastics, reflecting a commitment to sustainability. Each bottle undergoes rigorous third-party testing to ensure potency and purity.

Why Take Vitamin D3 and K2 Together?

Vitamin D3 and vitamin K2 are often discussed separately, but mounting research suggests they work best as a team. Vitamin D3 helps your body absorb calcium from the diet, while vitamin K2 directs that calcium to the bones and teeth – and away from soft tissues like blood vessels. Without enough K2, calcium deposited by D3 may end up in the wrong places. By taking them together, you support a balanced calcium utilisation process that promotes both skeletal strength and cardiovascular health.*

Solaray offers a high-potency combination with 5000 IU of D3 (as cholecalciferol from lanolin) and 50 mcg of K2 as MK-7 (menaquinone from chickpea). This synergy makes it a convenient choice for those seeking comprehensive support.

Frequently Asked Questions

Can I take vitamin D3 and K2 separately?

Yes, but taking them together ensures optimal timing and synergy. Many find a combined supplement more convenient and easier to remember.

Are there any side effects?

Vitamin D3 and K2 are generally well tolerated when taken as directed. Vitamin K2 has no known toxicity, but high doses of D3 may cause issues in sensitive individuals. Consult your health care provider before starting any new supplement, especially if you are on blood thinners (such as warfarin) or have kidney conditions.

What is the best time to take D3 and K2?

Since D3 and K2 are fat-soluble, taking them with a meal containing fat improves absorption. Many people take them with breakfast or lunch.

Recommended Dosage

Solaray recommends taking one vegetable capsule daily with a meal or as directed by a health care professional. Each capsule contains 5000 IU of vitamin D3 and 50 mcg of vitamin K2 (as MK-7). Do not exceed the recommended dose unless under medical supervision. As with any supplement, individual needs may vary based on age, diet, and health status.

This product is a food supplement and should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Keep out of reach of children. *These statements have been evaluated by the European Food Safety Authority and are authorised for uses in the UK.