Abstract P050: Vitamin K Intake and Risk of Coronary Heart Disease and Stroke in the Rotterdam Study

Introduction: Vitamin K serves as a cofactor in the carboxylation of vitamin K-dependent proteins that play a role in blood coagulation and the regulation of vascular calcification. Therefore, vitamin K intake may decrease the risk of cardiovascular diseases (CVD). We aimed to investigate the associations of phylloquinone (vitamin K1) and menaquinone (vitamin K2; MK-4 through MK-10) intake with risk of coronary heart disease (CHD) and stroke in a Dutch population-based cohort study. Methods: The analyses included 4,108 participants of the Rotterdam Study, aged 55 years and older, who were free of CVD and diabetes at baseline. Nutrient intake was estimated using a 170-item semi-quantitative food frequency questionnaire. To estimate the phylloquinone and menaquinone intake we compiled a new vitamin K food composition table using analytical and literature-based values. The occurrence of CHD and stroke was confirmed through medical records. Associations of phylloquinone and menaquinone intake with CHD and str...