Abstract 11503: Evening Caloric Intake is Associated With Cardiovascular Health in Women: Results From the American Heart Association Go Red for Women Strategically Focused Research Network

• Published in: Circulation (New York, N.Y.) N.Y.), 2019-11, Vol.140 (Suppl_1 Suppl 1), p.A11503-A11503
• Main Authors: Makarem, Nour, Sears, Dorothy D, St-Onge, Marie-Pierre, Castaneda, Sheila F, Gallo, Linda, Talavera, Gregory A, Liao, Ming, Byun, Stephanie, Mayat, Zara, Zuraikat, Faris M, Aggarwal, Brooke A
• Format: Article
• Language: English
• ISSN: 0009-7322; 1524-4539
• DOI: 10.1161/circ.140.suppl_1.11503

IntroductionAlignment of food intake with circadian rhythms may alter cardiometabolic risk, but evidence is limited. Existing observational studies are cross-sectional and rely on intakes from 1-2 non-consecutive days, prohibiting estimation of habitual meal timing patterns.HypothesisA greater proportion of daily caloric intake (%kcal) consumed in the evening will be associated with poorer cardiovascular health (CVH) in women.MethodsThe AHA Go Red for Women SFRN at Columbia is a 1-y prospective cohort study assessing sleep and cardiometabolic risk in a diverse sample of 506 women. A subset of 112 women (mean age 33 y, 44% Hispanic) completed a 1-wk food record using the web-based NIH Automated Self-Administered 24-h Dietary Assessment Tool at baseline and 1-y. The %kcal consumed after 6PM and 8PM were computed from time-stamped diet data. CVH was assessed using the AHA Life Simple 7 (LS7) score. Linear regression models adjusted for age and socioeconomic status were used to examine evening caloric intake in relation to CVH and cardiometabolic risk factors (BMI, blood pressure (BP), and glycemic markers) in the entire subset and by ethnicity.ResultsAt baseline, each 1% increase in %kcal consumed after 8PM was associated with a lower AHA LS7 score (β=-0.03, p=0.016) and higher diastolic BP (β=0.18, p=0.004). In cross-sectional analyses of 1-y data, every 1% increase in %kcal consumed after 6PM was associated with a lower AHA LS7 score (β=-0.12, p