Strava Healthcare manufactures vitamin D3 and K2 integrated supplements in India for nutraceutical brands and private label buyers. The rational for combining D3 with K2 comes from their complementary roles in calcium metabolism: D3 helps in increase of calcium absorption from the gut, and K2 activates the proteins osteocalcin and matrix Gla-protein that is the direct calcium into bone rather than arterial walls. That distinction has become a credible selling point as awareness of arterial calcification risk from unsupported high-dose D3 has grown. We use MK-7 (menaquinone-7), the form with the longest half-life and the best clinical data among the K2 vitamins. GMP-certified manufacturing with batch-level documentation.
Key Features
- Vitamin D3 as cholecalciferol — 1000 IU, 2000 IU, 5000 IU options
- Vitamin K2 as MK-7 (menaquinone-7) — 45 mcg, 90 mcg, 100 mcg, 120 mcg
- Softgel, capsule, and tablet formats
- Oil-based softgel improves fat-soluble vitamin absorption
- Custom D3:K2 ratios for brand-specific formulations
Applications
- Bone health — calcium deposition in bone rather than soft tissue
- Cardiovascular health — arterial calcification reduction
- Vitamin D deficiency correction with cardiovascular safety consideration
- Post-menopausal women and elderly populations
Product Specifications
| Parameter | Details |
|---|---|
| Active Ingredients | Cholecalciferol (D3) + Menaquinone-7 (K2 as MK-7) |
| D3 Strengths | 1000 IU / 2000 IU / 5000 IU |
| K2 (MK-7) Range | 45 mcg – 120 mcg per serving |
| Dosage Form | Softgel capsule / Hard capsule / Tablet |
| Packaging Sizes | Bottles of 30s, 60s, 90s; bulk |
| Storage | Cool, dry place — below 25°C, away from light |
| Shelf Life | 24 months |
| Manufacturer | Strava Healthcare Private Limited |
Frequently Asked Questions
MK-7 has a half-life of approximately 72 hours versus 1 to 2 hours for MK-4. This means once-daily dosing is pharmacologically rational for MK-7, and tissue concentrations remain more stable. MK-7 also has more clinical trial data on osteocalcin carboxylation. MK-4 requires higher doses given multiple times daily to achieve similar effects.
Yes. Vitamin K2 can reduce the effectiveness of warfarin and other vitamin K antagonists by competing with anticoagulant mechanisms. Patients on warfarin should not change their vitamin K intake without physician supervision. This should be on the product labelling.
Yes. Both D3 and K2 are fat-soluble, and oil-based softgels generally provide better and more consistent absorption than dry tablet forms. We produce softgels with appropriate carrier oils. Specify during enquiry.