Indices of local carotid stiffness (intima-media thickness IMT, Diameter end-diastole and Distension) were measured by echotracking. Healthy postmenopausal women (n=244) received either placebo (n=124) or MK-7 (n=120) for three years. We investigated long-term effects of MK-7 ( 180 µg MenaQ7/day) supplementation on arterial stiffness in a double-blind, placebo-controlled trial. However, MK intervention trials with vascular endpoints are lacking. Observational data suggest a link between menaquinone (MK, vitamin K2) intake and cardiovascular (CV) health. (1) VitaK & Cardiovascular Research Institute (CARIM), Maastricht University, The Netherlands (2) Central Diagnostic Laboratory, University Hospital Maastricht, The Netherlands (3) Biomedical Engineering, Maastricht University, The Netherlands Menaquinone-7 supplementation improves arterial stiffness in healthy postmenopausal women: double-blind randomised clinical trial Why are doctors reluctant to accept Vit D.Antibiotics health problems are eerily similar to those due to low Vit D.What might stop you from starting Vit D.

Vit D levels dropped by half in 20 years.

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Receptor gene can limit Vit D actually getting to cells.

Health Problems and Vit D (left column).

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