Direct calcium

Vitamin D3 raises calcium absorption from the gut and mobilizes it from storage. K2 activates the proteins — osteocalcin and matrix-Gla protein — that tell calcium where to go. Without K2, there is credible research suggesting high-dose D can contribute to soft-tissue calcification. The two vitamins are designed to work together, not alone.

For adults with documented deficiency or practitioner-identified need, yes — many functional and integrative clinicians use this dose routinely. For otherwise replete adults, daily 10,000 IU may be more than required. Ask your practitioner about serum 25(OH)D testing to personalize the dose.

vitaMK7 is a patented, natural, fermentation-derived MK-7 with published stability and bioavailability data. The MK-7 form has a longer half-life than MK-4, allowing once-daily dosing to maintain steady activation of calcium-binding proteins.

If you take warfarin or other vitamin K-sensitive anticoagulants, consult your practitioner before starting. Vitamin K can affect INR values, and dose adjustments or monitoring may be needed. Most direct-acting oral anticoagulants are not vitamin-K dependent.

Adults with documented vitamin D insufficiency, VDR Taq polymorphisms, bone density concerns, or who want cardiovascular-smart D3 supplementation. Pregnant or lactating women and children should consult a healthcare practitioner before use.

One capsule daily with a meal that contains fat — both D3 and K2 are fat-soluble and absorb substantially better alongside dietary fat. Morning or midday is typical; late-evening dosing may be activating for sensitive individuals.