Bio-Design Vitamin D3 5000 IU Plus 130 mcg Natural K2 (MK-7) - 100 Capsules

Why Choose Bio-Design?

With over 45 years of trusted service to health care practitioners, Bio-Design has built a reputation for quality and reliability. Their vitamin D3 and K2 supplement is formulated with high-grade ingredients, manufactured in a GMP-certified facility, and microencapsulated for enhanced stability. The D3 (cholecalciferol) is identical to that produced by sun exposure, while the K2 (menaquinone-7) is derived from natural natto. This commitment to excellence ensures you receive a dependable product that meets rigorous standards.

Understanding the Synergy: How D3 and K2 Work Together

Vitamin D3 and K2 work in tandem to optimise calcium utilisation. D3 enhances calcium absorption in the intestines, while K2 activates proteins that direct calcium to bones and teeth, and away from soft tissues such as arteries. Without sufficient K2, calcium may accumulate in unwanted areas, potentially compromising cardiovascular flexibility. The MK-7 form of K2 is especially effective due to its longer half-life, providing sustained support for healthy calcium metabolism. This synergy is why many experts recommend pairing these two nutrients for optimal bone and heart health.

Key Health Benefits

• Bone Support: Vitamin D3 aids calcium absorption, and vitamin K2 helps direct calcium to the bones, promoting strong, mineralised bones.*
• Teeth Health: By supporting calcium utilisation, this combination helps maintain healthy teeth and enamel integrity.*
• Immune Regulation: Vitamin D3 is known to help support a healthy immune response, which is important for overall wellness.*
• Heart Health: Vitamin K2 helps maintain arterial flexibility by supporting proper calcium distribution, which may help maintain cardiovascular function.*

What to Look For in a D3 + K2 Supplement

When choosing a D3 and K2 supplement, consider the dosage and form. An effective ratio often includes 5,000 IU of vitamin D3 and 100–200 mcg of vitamin K2 as MK-7. The MK-7 form is preferable due to its longer activity in the body. Look for natural, bio-available sources—Bio-Design uses lanolin-derived D3 and natural K2 from natto (fermented soya). Third-party testing and GMP certification ensure purity and potency. Additionally, vegetarian capsules make the supplement accessible to those with dietary preferences.

Frequently Asked Questions

Can I take vitamin D3 and K2 separately? Yes, but taking them together in a balanced formula ensures the correct ratio for synergy. Taking D3 without K2 may lead to improper calcium utilisation.

What is the best time to take this supplement? Take with a meal that contains fat, as both D3 and K2 are fat-soluble, enhancing absorption.

Are there any side effects? When taken as directed, side effects are rare. However, excessive vitamin D3 intake may cause issues. Consult your health care professional before starting any new supplement, especially if you are on blood thinners (vitamin K2 may interact with warfarin).

Recommended Dosage

As a dietary supplement, take one capsule daily with a meal, or as directed by your health care professional. Each capsule provides 5,000 IU of vitamin D3 (as cholecalciferol) and 130 mcg of vitamin K2 (as menaquinone-7). These amounts are suitable for most adults looking to support bone, immune, and heart health.*

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