What does the evidence say about Vitamin K2 Bone Markers Randomized Trial?

Updated October 2026

Quick Answer

Vitamin K2 Bone Markers Randomized Trial has evidence relevant to benefits, uncertainty, and practical interpretation, but conclusions should stay close to the cited sources. One representative finding is: Background Osteoporosis is a metabolic bone disease characterized by decreased bone mass and increased fracture risk.

Key Takeaways

  • 01Background Osteoporosis is a metabolic bone disease characterized by decreased bone mass and increased fracture risk. [Zhang Z (2025)]
  • 02Vitamin K2 (VK2) increased osteocalcin (OC; MD 1.86, 95% CI 1.17-2.56) and bone-specific alkaline phosphatase (BAP; MD 1.49, 95% CI 0.98-2.00). [Zhang Z (2025)]
  • 03It reduced undercarboxylated OC (ucOC; WMD -1.54, 95% CI -2.44 to -0.64) and tartrate-resistant acid phosphatase (TRAP; MD -0.83, 95% CI -1.21 to -0.46). [Zhang Z (2025)]
  • 04Bone turnover markers, such as osteocalcin (OC), undercarboxylated osteocalcin (ucOC), and other biochemical indicators, are important for assessing bone metabolism. [Zhang Z (2025)]
The current Migaku evidence database contains 2 reusable source documents for Vitamin K2 Bone Markers Randomized Trial. This answer focuses on benefits, uncertainty, and practical interpretation. - Background Osteoporosis is a metabolic bone disease characterized by decreased bone mass and increased fracture risk. [Zhang Z (2025); evidence level 1] - Vitamin K2 (VK2) increased osteocalcin (OC; MD 1.86, 95% CI 1.17-2.56) and bone-specific alkaline phosphatase (BAP; MD 1.49, 95% CI 0.98-2.00). [Zhang Z (2025); evidence level 1] - It reduced undercarboxylated OC (ucOC; WMD -1.54, 95% CI -2.44 to -0.64) and tartrate-resistant acid phosphatase (TRAP; MD -0.83, 95% CI -1.21 to -0.46). [Zhang Z (2025); evidence level 1] - Bone turnover markers, such as osteocalcin (OC), undercarboxylated osteocalcin (ucOC), and other biochemical indicators, are important for assessing bone metabolism. [Zhang Z (2025); evidence level 1] - Conclusions : These findings identify vitamin K-dependent carboxylation as a mechanistically specific and modifiable factor associated with skeletal fragility beyond bone mineral density, with distinct skeletal consequences across osteocalcin carboxylation states. [Sharma DK (2026); evidence level 4] Evidence levels are sorting aids, not final clinical grades. Level 1 usually indicates systematic-review style evidence, level 2 indicates randomized trials or public-health guidance, and lower levels need more cautious wording. This page is educational. People with medical conditions, pregnancy, medication use, or unusual symptoms should ask a qualified clinician before changing supplements, medication, or treatment routines.

Sources

  1. The effect of vitamin K2 supplementation on bone turnover biochemical markers in postmenopausal osteoporosis patients: a systematic review and meta-analysis.
  2. Vitamin K Status and Skeletal Fragility: Differential Associations of Osteocalcin Carboxylation States with Bone Strength, Geometry and Microarchitecture.