K2-7 180 mcg by Vital Nutrients

If you’re focused on bone strength and your Vitamin D, 25-Hydroxy is in range but you still want better calcium placement, vitamin K2 MK-7 is the add-on that often gets missed. It’s useful for post‑menopausal women, adults with low dairy or calcium intake, and long-term proton pump inhibitor users. People tracking bone turnover or arterial calcification also use it alongside D3 and calcium, while monitoring Calcium and, when appropriate, parathyroid hormone (the signal that pulls calcium from bone).

MK-7 activates two key vitamin K–dependent proteins: osteocalcin in bone and matrix Gla protein in blood vessel walls. Activated osteocalcin helps bind calcium into the bone matrix, while activated matrix Gla protein limits calcium deposition in arteries. Compared with MK-4, MK-7 stays in the blood longer, so once‑daily dosing keeps these proteins active. In trials, carboxylation (activation) improves within weeks, while bone density and arterial stiffness changes take months to years.

Take one capsule daily with a meal that contains fat for absorption. The 180 mcg MK-7 dose mirrors many clinical studies and is a practical maintenance dose when used with vitamin D3. If you’re correcting low Vitamin D, 25-Hydroxy, prioritize D3 repletion first, then keep K2 in place. Pairing with calcium makes sense only if your dietary calcium is low; avoid stacking multiple calcium sources without checking your total intake.

Skip K2 if you take warfarin (a vitamin K antagonist); it counteracts the drug and can destabilize your INR (the blood test used to set your warfarin dose). Direct oral anticoagulants like apixaban or rivaroxaban do not rely on vitamin K, but discuss supplements with your prescriber. If you have a history of high calcium, recurrent kidney stones, or fat‑malabsorption, involve a clinician and monitor Calcium and, when indicated, parathyroid hormone.