topicVitamin K2 Supplementation Bone Density Randomized Trial
claimIn the Global Burden of Disease 2019 analysis, low bone mineral density was associated with about 438,000 deaths and 166 million disability-adjusted life years, with large increases since 1990 ().
evidence level1
citationZhang Zechen (2025)
sourceThe effect of vitamin K2 supplementation on bone turnover biochemical markers in postmenopausal osteoporosis patients: a systematic review and meta-analysis
topicVitamin K2 Supplementation Bone Density Randomized Trial
claimIn a cross-sectional study of 900 Chinese adults, higher ucOC was associated with lower BMD at the spine, femoral neck, and hip, and with higher P1NP and β-CTX, indicating increased turnover ().
evidence level1
citationZhang Zechen (2025)
sourceThe effect of vitamin K2 supplementation on bone turnover biochemical markers in postmenopausal osteoporosis patients: a systematic review and meta-analysis
topicVitamin K2 Supplementation Bone Density Randomized Trial
claimK2 deficiency has been linked to the “calcium paradox,” with insufficient skeletal deposition and increased vascular calcification ().
evidence level1
citationZhang Zechen (2025)
sourceThe effect of vitamin K2 supplementation on bone turnover biochemical markers in postmenopausal osteoporosis patients: a systematic review and meta-analysis
topicVitamin K2 Supplementation Bone Density Randomized Trial
claimIt is characterized by low bone mass and deterioration of bone microarchitecture.
evidence level1
citationZhang Zechen (2025)
sourceThe effect of vitamin K2 supplementation on bone turnover biochemical markers in postmenopausal osteoporosis patients: a systematic review and meta-analysis
topicVitamin K2 Supplementation Bone Density Randomized Trial
claim1 2 3 4 5 6 7 Osteopenia is a pre-pathological condition defined as the precursor of osteoporosis and characterized by reduced bone mineral density (BMD).
evidence level4
citationNordio Maurizio (2026)
sourceAdvances in the management of osteopenia: a case series
topicVitamin K2 Supplementation Bone Density Randomized Trial
claimGiven its detrimental effect on human health, it is important to understand and monitor the risk factors associated with osteopenia, which include tobacco use, alcohol abuse, vitamin D and calcium deficiency, and pathological low values of body mass index (BMI) [,].
evidence level4
citationNordio Maurizio (2026)
sourceAdvances in the management of osteopenia: a case series
topicVitamin K2 Supplementation Bone Density Randomized Trial
claimFurthermore, several concomitant pathologies may contribute to increase the risk of developing osteopenia, including kidney and liver disease, celiac disease, rickets, type I diabetes mellitus, hyperparathyroidism, hypogonadism, and amenorrhea.
evidence level4
citationNordio Maurizio (2026)
sourceAdvances in the management of osteopenia: a case series
topicVitamin K2 Supplementation Bone Density Randomized Trial
claimIt is a serious threat to bone health owing to the occurrence of increasing susceptibility to fractures and bone-related diseases.
evidence level4
citationNordio Maurizio (2026)
sourceAdvances in the management of osteopenia: a case series