NOW Supplements, Mega D-3 & MK-7, 5000 IU / 180 mcg, Bone & Cardiovascular Support*, Vitamins K-3 & K-2, 120 Capsules

Key Health Benefits

Discover the combined power of vitamin D3 and vitamin K2 in NOW Supplements Mega D-3 & MK-7. This supplement supports bone health, cardiovascular function, and immune system health. Vitamin D3 encourages calcium absorption from the digestive tract, while vitamin K2 (MenaQ7 MK-7) helps direct calcium to the bones and teeth, away from soft tissues. This synergy promotes normal bone mineralisation and supports immune function, as recognized by scientific research.*

• Bone Health: Vitamin D and vitamin K contribute to the maintenance of normal bones.*
• Immune Function: Vitamin D contributes to the normal function of the immune system.*
• Cardiovascular Support: Vitamin K plays a critical role in arterial health by supporting proper calcium metabolism in blood vessels.*
• Dental Health: Vitamin D contributes to the maintenance of normal teeth.*

*These statements are supported by scientific research and are not intended to diagnose, treat, , or prevent any disease.

Understanding the Synergy: How D3 and K2 Work Together

Vitamin D3 (cholecalciferol) is a fat-soluble nutrient that facilitates calcium absorption from the digestive tract. Once calcium is in the bloodstream, vitamin K2 activates two key proteins: osteocalcin and matrix Gla protein. Osteocalcin binds calcium to the bone matrix, supporting bone density, while matrix Gla protein inhibits calcium deposition in blood vessel walls, thereby preserving arterial flexibility.*

The MK-7 form of vitamin K2, used in this product, has a longer half-life than MK-4, meaning it remains active in the body for longer and can be taken once daily. This sustained-release profile ensures consistent support for calcium metabolism. MenaQ7 MK-7 is a unique, soya-free, bio-available form of vitamin K2 that is extensively researched for its benefits.

Why Choose a D3 and K2 Combination?

Many people take vitamin D3 for its immune and bone benefits, but without adequate vitamin K2, the extra calcium absorbed may not be properly directed. Vitamin K2 ensures that calcium is utilised where it is needed most—in the bones and teeth—rather than accumulating in arteries. This synergy makes the combination ideal for those looking to support long-term skeletal and cardiovascular health.

Individuals at risk of vitamin D or K deficiency, such as older adults or those with limited sun exposure, may particularly benefit from this duo. NOW Supplements Mega D-3 & MK-7 delivers both nutrients in one convenient capsule, using premium MenaQ7 MK-7 vitamin K2 derived from natto.

What to Look For in a D3 + K2 Supplement

When selecting a vitamin D3 and K2 supplement, consider the dosage, form, and manufacturing quality. NOW Supplements Mega D-3 & MK-7 provides 5000 IU of vitamin D3 and 180 mcg of vitamin K2 (MenaQ7 MK-7). This dosage is commonly used to maintain healthy vitamin D levels and to support calcium metabolism. The MK-7 form is preferred for its sustained-release properties.

Also, opt for products from reputable manufacturers with third-party testing. NOW is a family-owned company founded in 1968, with ISO/IEC-accredited in-house laboratories for stability, potency, and product formulation. Their GMP quality assurance ensures purity and potency.

Recommended Dosage

The typical dosage is one capsule per day, providing 5000 IU of vitamin D3 and 180 mcg of vitamin K2 (MK-7). This is suitable for most adults. For optimal absorption, take with a meal containing fat. As with any supplement, consult your health care professional before starting a new regimen, especially if you are on medication or have underlying conditions.

Frequently Asked Questions

Can I take vitamin D3 and K2 with other supplements? Yes, they are generally safe to take alongside most supplements. However, if you are taking blood-thinning medication (e.g., warfarin), consult your doctor before using vitamin K2, as it may interfere with anticoagulant therapy.

When is the best time to take D3 and K2? Since both are fat-soluble, take them with a meal that contains fat for better absorption. Many people find it convenient to take them with their main meal of the day.

How long does it take to see results? Supplementation supports gradual, long-term health benefits. Consistency over several weeks to months is recommended for optimal effects.

Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Do not exceed the recommended dose. Keep out of reach of children.