Dietary Vitamin B₆ Intake Associated with a Decreased Risk of Cardiovascular Disease: A Prospective Cohort Study

• Main Authors: Jimin Jeon, Kyong Park
• Format: Article
• Language: English
• Published: MDPI AG 2019-06-01
• Series: Nutrients
• Subjects: cardiovascular disease; vitamin B₆; men; cohort study
• Online Access: https://www.mdpi.com/2072-6643/11/7/1484

Although the biological mechanisms underlying the beneficial effects of vitamin B₆ on cardiovascular disease (CVD) have been reported on, epidemiological studies have yielded controversial results, and data on the Korean population are limited. This study examined the association between dietary vitamin B₆ intake and CVD incidence in Koreans. A total of 9142 participants of the Korean Genome and Epidemiology Study, aged 40&#8722;69 years, who did not have CVD or cancer at the baseline were included in the analysis. Dietary data were assessed using a validated semi-quantitative food frequency questionnaire. CVD incidence was assessed using biennial questionnaires and confirmed through repeated personal interviews. Multivariable-adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated using Cox proportional hazard regression models. After multivariate adjustment, a higher vitamin B₆ intake was significantly associated with a decreased CVD risk in men (HR: 0.44; 95% CI: 0.25&#8722;0.78); no such association was observed in women. Dose-response analysis confirmed the presence of inverse linearity between vitamin B₆ intake and CVD incidence in men (<i>p</i> for nonlinearity = 0.3). A higher dietary intake level of vitamin B₆ was associated with a reduced CVD risk in Korean men. These observations require further verification in other populations.