What Makes Nutra BioGenesis D3/K2 Emulsion Special?
Nutra BioGenesis has crafted a liquid D3/K2 supplement that prioritises bioavailability and convenience. The sublingual emulsion in MCT oil ensures rapid absorption, while the dropper bottle allows precise dosing. This formula is free from artificial flavours, sweeteners and colours, and it is suitable for vegans and those avoiding gluten. Each batch is manufactured in a GMP-certified facility and undergoes third-party testing for purity and potency. Backed by over two decades of science-based formulation, this product reflects the brand's commitment to quality.
Key Health Benefits of This D3 + K2 Supplement
Bone and Teeth Support: By helping your body utilise calcium effectively, this duo supports strong, dense bones and healthy tooth enamel. Adequate vitamin D and K levels are linked to better skeletal health as you age.
Immune Function: Vitamin D3 is well known for its role in maintaining a healthy immune response. The addition of K2 does not interfere with this benefit, making this combination a smart choice year-round, especially during winter months when sun exposure is limited.
Heart Health: Through its activation of MGP, vitamin K2 helps maintain arterial flexibility and normal calcium balance in the cardiovascular system. This supports overall heart health.*
Understanding the Synergy: How D3 and K2 Work Together
Vitamin D3 supports the production of calcium-binding proteins in the gut, which helps your body absorb calcium from food. Vitamin K2 then activates two key proteins: osteocalcin, which helps bind calcium to the bone matrix, and matrix GLA protein (MGP), which helps keep calcium from depositing in blood vessels. Without enough K2, calcium absorbed thanks to D3 may not be properly utilised. This synergy is why many health experts recommend pairing these two fat-soluble vitamins. The MCT oil base in this formula aids absorption of both nutrients, as they are fat-soluble.
Why Combine Vitamin D3 and K2?
Vitamin D3 and K2 work as a team to support your body's calcium balance. Whilst D3 helps increase calcium absorption from your diet, K2 helps direct that calcium to your bones and teeth—and away from soft tissues like arteries. Taking them together may be more effective than taking either alone. This liquid supplement delivers both nutrients in a convenient, sublingual drop form. With 1,000 IU of vitamin D3 and 45 mcg of vitamin K2 (MK-4) per serving, it provides a well-researched ratio for daily wellness.
Frequently Asked Questions
What is the difference between K2 as MK-4 and MK-7? MK-4 (menatetrenone) is a shorter-acting form of vitamin K2 with a half-life of about 2 hours, whilst MK-7 has a longer half-life (around 3 days). This product use MK-4, which is well-studied for bone and dental health. Some research suggests MK-4 is particularly beneficial for osteocalcin activation.
Can I take this with other medications? Vitamin K can interact with blood thinners like warfarin. If you take anticoagulants, consult your health care provider before using any vitamin K supplement. Vitamin D3 is generally safe, but very high doses may interact with certain medications.
What is the best time to take it? Because it is fat-soluble, take this supplement with a meal that contains fat (or the MCT oil base is sufficient). Many people prefer morning or lunchtime. Sublingual drops can be placed under the tongue for 30 seconds before swallowing.
Recommended Dosage and Usage
Adults and children over 4 years: Take 5 drops (0.25 ml) daily, or as directed by a health care professional. Each serving provides 1,000 IU vitamin D3 and 45 mcg vitamin K2 (MK-4). Do not exceed the recommended dose unless advised by your doctor. Shake well before use. Store in a cool, dry place away from direct sunlight.
*These statements have not been evaluated by the European Food Safety Authority (EFSA) or 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 diet and healthy lifestyle.