Doctor's Best Natural Vitamin K2 MK-7 Plus D3 - 60 Veg Caps

Key Health Benefits

Discover Doctor'S Best Natural — Bone Health Support: Vitamin D3 contributes to normal absorption and utilisation of calcium and phosphorus. Vitamin K2 (MK-7) supports the maintenance of normal bones by activating osteocalcin, which helps bind calcium to the bone matrix.*

Cardiovascular Health: Vitamin K2 activates matrix GLA protein (MGP), which helps maintain arterial flexibility by preventing calcium accumulation in vessel walls. This supports normal cardiovascular function.*

Immune Function: Vitamin D3 contributes to the normal function of the immune system, making it a valuable nutrient for overall wellness.*

Dental Health: By directing calcium to teeth, vitamin K2 supports the maintenance of normal dental structure.*

How D3 and K2 Work Together

Vitamin D3 (cholecalciferol) enhances calcium absorption from the gut by promoting the production of calcium-binding proteins. However, absorption alone is not enough—the body needs a way to properly distribute calcium. This is where vitamin K2 steps in. K2 activates two key proteins: osteocalcin, which helps bind calcium to the bone matrix, and matrix GLA protein (MGP), which helps keep calcium out of arterial walls. The result is a synergistic system that supports bone density and arterial flexibility. Doctor's Best uses MenaQ7®, a premium, bio-available form of vitamin K2 as MK-7, which stays active in the body longer than other forms.

Why Take D3 and K2 Together?

Vitamin D3 and vitamin K2 work as a team in the body. D3 increases calcium absorption from the gut, while K2 directs that calcium to the bones and teeth—and away from soft tissues like arteries. Taking them together ensures calcium is used where it is needed most, supporting both bone strength and cardiovascular health. Without enough K2, calcium absorbed thanks to D3 may end up in the wrong places. That's why a combined D3 + K2 supplement is a smart choice for anyone looking to optimise their nutrient intake.

What to Look For in a D3 + K2 Supplement

Not all D3 and K2 supplements are created equal. Key considerations include the form of K2—MK-7 is preferred for its longer half-life and sustained activity. Look for a dosage ratio where D3 ranges from 1000–5000 IU and K2 MK-7 from 45–180 mcg. Doctor's Best provides 1000 IU (25 mcg) of D3 and 180 mcg of K2 MK-7 per capsule, an optimal ratio for daily maintenance. The K2 is sourced from fermented chickpeas (MenaQ7), making it vegetarian-friendly and highly absorbable. The formula is non-GMO, gluten-free, and soya-free, with no unnecessary additives. Third-party testing ensures purity and potency.

Recommended Dosage

Take one capsule daily with food, or as recommended by a health care professional. Each capsule provides 25 mcg (1000 IU) of vitamin D3 and 180 mcg of vitamin K2 (MK-7). This dosage is suitable for most adults looking to support bone and cardiovascular health. Always consult a physician before starting any new supplement, especially if you have existing health conditions or are taking medication.

Frequently Asked Questions

Can I take D3 and K2 separately? Yes, but taking them together ensures proper calcium utilisation and simplifies your routine.

When is the best time to take them? With a meal containing fat, as both D3 and K2 are fat-soluble vitamins for better absorption.

Are there any interactions? If you are taking blood thinners like warfarin, consult your health care provider before taking vitamin K2 supplements.

Is this product suitable for vegetarians? Yes, the K2 is from fermented chickpeas and the D3 is from lanolin. The capsules are vegetarian.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, , or prevent any disease.