Key Health Benefits
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Maintenance of normal bones: Vitamin D3 contributes to the normal absorption and utilisation of calcium and phosphorus, while vitamin K2 contributes to the maintenance of normal bones.*
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Normal muscle function: Vitamin D contributes to the maintenance of normal muscle function, supporting mobility and coordination.*
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Calcium and phosphorus balance: Vitamin D3 helps maintain normal blood levels of calcium and phosphorus, essential for many physiological processes.*
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Normal blood clotting: Vitamin K contributes to normal blood clotting and the maintenance of normal bones.*
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Normal immune function: Vitamin D contributes to the normal function of the immune system.*
Why Take Vitamin D3 and K2 Together?
Vitamin D3 and vitamin K2 are often discussed individually, but they work together as a synergistic team. Vitamin D3 (cholecalciferol) enhances the absorption of calcium from the diet. However, without adequate vitamin K2, that calcium may be deposited in soft tissues, such as the arteries, rather than being directed to the bones and teeth. Vitamin K2, in the form of menaquinone-7 (MK-7), activates proteins that guide calcium to the skeleton. Taking them together optimises calcium utilisation, helping to maintain strong bones and healthy muscle function.*
This combination is particularly beneficial for those looking to support bone density as they age, maintain cardiovascular health, and promote overall wellbeing. Nordic Naturals Vitamin D3 + K2 Gummies offer a convenient, great-tasting way to get both nutrients in one serving.
Understanding the Synergy: How D3 and K2 Work Together
To understand how D3 and K2 cooperate, consider their roles at the cellular level. Vitamin D3 binds to receptors in the intestines, triggering the production of calcium-binding proteins that increase absorption. This raises blood calcium levels, but without K2, there is no clear direction for where that calcium should be deposited. Vitamin K2 activates two crucial proteins: osteocalcin (in bones) and matrix GLA protein (MGP) (in the vascular system). Osteocalcin helps incorporate calcium into the bone matrix, strengthening the skeleton. MGP helps prevent calcium from accumulating in arterial walls. Therefore, D3 increases calcium availability, and K2 ensures it is used safely and effectively. This co-operative mechanism supports both bone density and cardiovascular health.*
Nordic Naturals uses vitamin D3 as cholecalciferol (the most bio-available form) and vitamin K2 as MK-7 (the most bioactive, with a longer half-life than MK-4). This ensures sustained action throughout the day.
What to Look For in a D3 + K2 Supplement
When choosing a vitamin D3 and K2 supplement, several factors matter. First, examine the forms: Look for cholecalciferol (D3) rather than ergocalciferol (D2), as D3 is more effectively utilised. For K2, menaquinone-7 (MK-7) is preferred due to its longer half-life and greater bioavailability compared to MK-4.
Dosage is also critical. Nordic Naturals provides 1000 IU of vitamin D3 and 45 mcg of vitamin K2 (as MK-7) per serving—a well-researched ratio. Third-party testing ensures purity and potency. This product is non-GM, gluten-free, dairy-free, and contains no artificial colours or flavours. The pomegranate flavour is derived from natural sources, making the gummies enjoyable to take daily.
Ethical sourcing matters too. Nordic Naturals is committed to sustainable practices and rigorous quality standards, verified by third-party testing.
Frequently Asked Questions
Can I take vitamin D3 and K2 with other medications?
If you are taking blood thinners (like warfarin), consult your health care provider before supplementing with vitamin K2, as it can interfere with anticoagulant therapy. Vitamin D3 may also interact with certain medications. Always discuss new supplements with a medical professional.
What is the best time to take these gummies?
Vitamin D3 is fat-soluble, so taking the gummies with a meal containing fat may enhance absorption. However, the gummy format is convenient and can be taken any time of day. Consistency is key.
Are these gummies suitable for vegetarians?
The gummies are gelatine-free and suitable for vegetarians. Still, note that vitamin D3 is derived from lanolin (sheep's wool), so they may not be suitable for strict vegans. Check the label for vegan certification if required.
Recommended Dosage
For adults, take one gummy daily, preferably with a meal. Each gummy provides 1000 IU (25 mcg) of vitamin D3 and 45 mcg of vitamin K2 (as MK-7). This dosage aligns with general wellness recommendations for maintaining healthy bones, muscles, and immune function. Do not exceed the recommended serving unless directed by a health care professional.
*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. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Always read the label.