Metabolic Maintenance Vitamin D3 and K2 Supplement - 25,000 IU D3 with K2 MK-7 - 60 Capsules

Many Australians head outdoors for their daily dose of vitamin D, but between sunscreen, cloud cover, and time indoors, it's easy to come up short. That's why a high-potency D3 and K2 combo can be a smart addition to your daily routine. Metabolic Maintenance brings you 25,000 IU of vitamin D3 paired with vitamin K2 as MK-7 – a duo designed to help your body use calcium effectively for strong bones and overall health. This science-backed formula is ideal for adults who need extra support, especially during the cooler months.

Key Health Benefits

• Bone Health & Density: Vitamin D3 assists with calcium and phosphorus absorption, while K2 helps direct calcium to bone tissue. Together they contribute to maintaining strong bones as you age.
• Immune Support: Vitamin D3 plays a role in healthy immune function. This supplement provides a substantial dose to help maintain balanced immune activity.*
• Mood Support: Adequate vitamin D levels are linked to a positive outlook. This formula includes 25,000 IU to help support mood and mental wellbeing during darker months or for those with limited sun exposure.
• Cardiovascular Health: By promoting proper calcium allocation, vitamin K2 helps maintain arterial flexibility, which supports heart health.*

*Always read the label and follow the directions for use.

Why Take Vitamin D3 and K2 Together?

Vitamin D3 and K2 are a powerful duo. Vitamin D3 helps your body absorb calcium from the digestive tract, while vitamin K2 activates proteins that direct calcium to your bones and teeth—and away from soft tissues like arteries. Taking them together ensures calcium is used where it matters most for bone strength and cardiovascular health. Without enough K2, calcium may accumulate in places it shouldn't.

Understanding the Synergy: How D3 and K2 Work Together

How do they work together? Vitamin D3 (cholecalciferol) supports the production of calcium-binding proteins in the gut, which increases calcium absorption. Vitamin K2 (menaquinone-7) activates osteocalcin and matrix GLA protein. Osteocalcin helps bind calcium into the bone matrix, while matrix GLA protein helps maintain arterial flexibility by inhibiting calcium deposition. This complementary action supports both skeletal strength and heart health.

The MK-7 form of vitamin K2 is preferred because it stays active in the body longer than MK-4, allowing for steady support throughout the day. This supplement provides MK-7 from natto-based fermentation, known for its bioavailability.

What to Look For in a D3 + K2 Supplement

What sets this formula apart? It delivers 25,000 IU of vitamin D3 (625 mcg) and vitamin K2 as MK-7. The MK-7 form has a longer half-life, meaning sustained support with once-daily dosing. The supplement is free from gluten, dairy, fillers, tree nuts, and preservatives—meeting the highest purity standards. Metabolic Maintenance, part of a trusted family of brands with over 45 years of experience, backs this product with rigorous quality control.

Recommended Dosage

This is a high-potency supplement. Take one capsule daily with food, or as directed by a healthcare professional. Because this provides 25,000 IU of vitamin D3, it is intended for those with known higher needs—not for routine daily use without practitioner guidance. Always discuss your individual requirements with a qualified health provider.

Frequently Asked Questions

Can I take vitamin D3 and K2 separately?

Yes, but taking them together ensures optimal synergy. Many find a combined supplement more convenient for consistent daily use.

When is the best time to take it?

Take with a meal that contains fat, as both D3 and K2 are fat-soluble vitamins. This improves absorption.

Are there any side effects?

High-dose vitamin D may cause issues in sensitive individuals. Consult your healthcare provider before starting any new supplement, especially if you take medications like blood thinners (vitamin K can interact with warfarin).

Always read the label and follow the directions for use. This product is not intended to diagnose, treat, or prevent any disease.