Vitamin D3 K2 5000 IU & 100 mcg MK-7 – 120 Softgels

Vitamin D3 and K2 are a powerhouse duo for your body’s foundation. Nutritunes brings you a potent combination of 5000 IU vitamin D3 (as cholecalciferol) and 100 mcg vitamin K2 as MK-7 (K2VITAL®) to support calcium utilisation where it counts: strong bones, heart health, and immune function. Each bottle offers a 4-month supply of easy-to-swallow softgels, making daily wellness simple and consistent.

Understanding the Synergy: How D3 and K2 Work Together

The synergy begins with vitamin D3. D3 supports the production of calcium-binding proteins in the intestinal lining, enhancing calcium absorption. Meanwhile, vitamin K2 activates two critical proteins: osteocalcin and matrix GLA protein (MGP). Osteocalcin helps bind calcium to the bone matrix, while MGP may help prevent calcium from depositing in blood vessel walls. This complementary action makes D3 and K2 a powerful duo for maintaining skeletal and cardiovascular health.*

Nutritunes uses the clinically studied K2VITAL® form of MK-7, which is 99.7% all-trans and known for its superior bioavailability and longer half-life compared to other K2 forms. This means your body can put it to work more effectively over a sustained period.

What to Look For in a D3 + K2 Supplement

Not all D3 and K2 supplements are created equal. The dosage ratio matters: many experts recommend 1000–5000 IU of D3 paired with 45–100 mcg of K2 (as MK-7) for optimal synergy. Nutritunes provides a potent 5000 IU D3 and 100 mcg K2 in each soft gel capsule, ideal for those with higher needs or limited sun exposure.

The form of K2 is equally important. MK-7 is derived from natto or produced synthetically and offers a longer half-life than MK-4, meaning you need just one daily dose. Look for third-party testing and purity seals. Nutritunes’ formula is non-GMO, gluten-free, soya-free and lactose-free, made in a GMP-certified facility in the USA.

Why Take Vitamin D3 and K2 Together?

Vitamin D3 is well-known for helping the body absorb calcium from the diet. But calcium absorption alone isn’t enough—without proper guidance, calcium can end up in soft tissues like arteries instead of bones. That’s where vitamin K2 steps in. K2 helps activate proteins that direct calcium to the skeleton and teeth, supporting healthy bone density while maintaining arterial flexibility. Taking D3 and K2 together ensures that the calcium you consume is used effectively, promoting a balanced calcium metabolism.*

Key Health Benefits

• Bone Support: Vitamin D3 supports calcium absorption, while K2 helps direct calcium to the bones, contributing to the maintenance of strong, healthy bones.*
• Heart & Arterial Health: K2 helps activate MGP, a protein that may support arterial flexibility and normal calcium balance in blood vessels.*
• Immune Function: Vitamin D3 plays a role in supporting normal immune function, helping your body’s natural defences stay resilient.*
• Dental Health: By promoting proper calcium utilisation, this combination also helps maintain healthy teeth and gums.*

Recommended Dosage

For adults, take one soft gel capsule daily with a meal. Each bottle contains 120 softgels, providing a 4-month supply. As with any supplement, it’s wise to consult your health care professional before starting a new regimen, especially if you have underlying health conditions or are pregnant or nursing.

Frequently Asked Questions

Can I take vitamin D3 and K2 if I’m on blood thinners? If you take anticoagulant medications like warfarin, consult your health care provider before using vitamin K2, as it may interfere with medication.

What is the best time to take D3 and K2? Because they are fat-soluble vitamins, taking them with a meal containing healthy fats can enhance absorption.

Are there any side effects? Most people tolerate D3 and K2 well at recommended doses. Excessive vitamin D intake may lead to elevated calcium levels; stick to the suggested serving.

* 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.