Our view, stated clearly.
We include K2 as MK-7 because calcium absorption is only one part of the bone system. Vitamin K is required to activate proteins such as osteocalcin, while MK-7 offers a defined menaquinone form with sustained daily presence. OsteoMagnesium discloses 90 mcg so that role can be evaluated directly.
What vitamin K actually does
Vitamin K acts as a cofactor for an enzyme that carboxylates specific proteins. Those vitamin K-dependent proteins include osteocalcin in bone and matrix Gla protein in vascular and other tissues.1
Carboxylation changes a protein’s ability to bind calcium. This mechanism makes K2 relevant to a mineral formula, while clinical outcomes such as fracture reduction or cardiovascular protection require a higher standard of evidence.
Why MK-7?
MK-7 is a menaquinone form of vitamin K2. Pharmacokinetic research summarized by NIH indicates that MK-7 has a longer half-life than vitamin K1, making it a logical form for daily supplementation.1
Longer circulation is a form advantage—not proof that any dose produces a particular disease outcome. We choose MK-7 for sustained daily presence and clearly disclose the form and amount.
Why pair K2 with D3 and magnesium?
D3 supports calcium absorption. K2 supports activation of vitamin K-dependent proteins involved in bone biology. Magnesium participates in bone structure and hundreds of enzymatic reactions.1
Together they form a coherent system with distinct jobs. OsteoMagnesium provides 90 mcg MK-7, 25 mcg D3, and 50 mg elemental magnesium; each amount should be judged on the Supplement Facts panel, not by a slogan.
MK-7 earns its place because vitamin K-dependent carboxylation is a real, specific biological step. Its defined form, disclosed 90 mcg amount, and complementary role beside D3 and magnesium create a coherent bone-support rationale.
What earns our confidence
Exact form
The label should specify vitamin K2 as menaquinone-7 (MK-7).
Disclosed amount
Compare micrograms per complete serving; OsteoMagnesium provides 90 mcg.
Precise language
Support for vitamin K-dependent proteins is stronger wording than a calcium-routing slogan.
Medication warning
Vitamin K can seriously interact with warfarin and similar anticoagulants.
Vitamin K2 (MK-7) FAQs
What does MK-7 mean?+
MK-7 means menaquinone-7, one form in the vitamin K2 family.
Does K2 direct calcium into bones?+
That phrase oversimplifies the biology. Vitamin K enables carboxylation of proteins such as osteocalcin; clinical bone outcomes depend on much more than that mechanism.
Why combine K2 with D3?+
D3 supports calcium absorption, while vitamin K supports activation of vitamin K-dependent proteins. Their roles are related but not interchangeable.
Who needs special caution with K2?+
Anyone taking warfarin or a similar vitamin K-antagonist anticoagulant should not change vitamin K intake without guidance from the prescribing clinician.
References
- Vitamin K — Health Professional Fact SheetNIH Office of Dietary Supplements.