Bronson Vitamin K2 D3 (MK7) Supplement 2-in-1 D3 & K2 Complex, 60 Capsules

Key Health Benefits

Strong Bones: By helping your body absorb calcium and directing it to the skeleton, this D3 and K2 combination supports bone mineral density. Both nutrients play a role in bone remodelling and overall skeletal strength.

Immune Support: Vitamin D3 is well known for maintaining a healthy immune response. Adequate levels help immune cells function properly and defend against seasonal bugs.

Heart Health: Vitamin K2 supports cardiovascular health by keeping arteries flexible. By activating matrix GLA protein (MGP), it may help stop calcium from building up in blood vessels, promoting normal circulation and heart function.

Dental Health: Both vitamins contribute to strong teeth. D3 aids calcium absorption, while K2 helps direct calcium into tooth enamel, supporting oral hygiene.

Why Take Vitamin D3 and K2 Together?

Vitamin D3 and K2 are a powerful team for overall health. D3 helps your body absorb calcium from the digestive tract, but K2 steps in to direct that calcium to the right places—your bones and teeth—and keep it out of soft tissues like arteries. Without enough K2, the calcium that D3 brings in could end up where it doesn't belong. Taking them together ensures you get the full benefit of both nutrients.

Most people know vitamin D is important for bones and immunity, but many don't realise that D3 needs K2 to maximise its benefits. This Bronson supplement delivers 5000 IU of vitamin D3 (as cholecalciferol) with 90 mcg of vitamin K2 as menaquinone-7 (MK-7), the long-acting form that supports steady levels in the body. It's a convenient two-in-one formula designed to support calcium metabolism effectively.

Understanding the Synergy: How D3 and K2 Work Together

The synergy between D3 and K2 comes from their complementary roles in calcium metabolism. Vitamin D3 boosts the production of calcium-binding proteins in the intestines, enhancing absorption. It also ramps up osteocalcin, a protein that helps bind calcium to the bone matrix.

Vitamin K2 then activates osteocalcin—a process called carboxylation—so it can grab calcium and incorporate it into bone tissue. Simultaneously, K2 activates MGP, which helps prevent calcium from depositing in blood vessel walls. This two-step process ensures calcium is used where it's needed for strong bones and teeth, while supporting arterial flexibility for cardiovascular health.

The MK-7 form of vitamin K2 is especially effective because it has a longer half-life in the bloodstream compared to MK-4, providing more consistent activation of these proteins throughout the day. Bronson's formula uses MK-7 to deliver sustained support for calcium balance.

What to Look For in a D3 + K2 Supplement

When choosing a vitamin D3 and K2 combination, consider the dosage, form, and purity. Bronson's formula delivers 5000 IU (125 mcg) of vitamin D3, a potent yet safe daily amount for most adults, paired with 90 mcg of vitamin K2 as MK-7. This ratio is aligned with current research on optimal synergy.

The MK-7 form is preferred for its longer duration—it stays active in the body for up to 24 hours, supporting consistent K2 levels. Look for supplements that are third-party tested for quality and free from unnecessary additives. Bronson's capsules are Non-GM, gluten free, and soy-free, and are laboratory tested in their state-of-the-art facility in New York.

Also check the brand's reputation. Bronson Vitamins has been trusted since 1960, originally founded by pharmacists who witnessed the benefits of supplementation first-hand. Their products have been consistently recommended by healthcare professionals for decades.

Frequently Asked Questions

Can I take vitamin D3 and K2 with other medications? If you are taking blood thinners like warfarin, consult your healthcare provider before supplementing with vitamin K2, as it may interfere with anticoagulant therapy. Always discuss any new supplement with your doctor.

What is the best time to take this supplement? Vitamin D3 and K2 are fat-soluble, so take them with a meal that contains some fat (like breakfast or lunch) to enhance absorption. Consistency is key—take at the same time each day.

Is it safe to take 5000 IU of vitamin D daily? For most adults, 5000 IU is considered a safe and effective dose. However, individual needs vary. A blood test for vitamin D levels can help determine your optimal intake. If you have certain health conditions or are pregnant, consult your doctor.

Can I get enough K2 from food alone? Vitamin K2 is found in fermented foods like natto, cheese, and sauerkraut, but many people do not consume these regularly. Supplementing ensures you get a reliable amount of MK-7.

Recommended Dosage

Take one capsule daily with a meal, or as directed by your healthcare professional. Each bottle contains 60 capsules, a two-month supply at the recommended serving. Store in a cool, dry place away from direct sunlight. For best results, maintain a balanced diet rich in calcium and other bone-supporting nutrients.

Always read the label and follow directions for use. These statements have not been evaluated by the Therapeutic Goods Administration (TGA). This product is not intended to diagnose, treat, , or prevent any disease.