(“Coronary Artery Risk Development in Young Adults”, NIH/NHLBI). The CARDIA study is also an ongoing 35-year, multisite OS examining the development and determinants of clinical and subclinical cardiovascular disease (CVD) and their risk factors among African-American and white men and women of diverse socioeconomic status. The study began in 1985-1986 with 5,115 young adults aged 18-30y. Approximately the same number of African-American and white men and women, education groups (<=high school and >high school education), and age groups (18-24y and 25-30y) were from each of 4 centers: Birmingham, AL; Chicago, IL; Minneapolis, MN; and Oakland, CA, covering western, southern, and midwestern regions of the US. Eight follow-up examinations were completed in the same cohort aged 48-60y by 2016. CARDIA dietary intake was assessed by an interviewer-administered CARDIA diet history Questionnaire at baseline (1985-1986), Year 7 (1992-1993), Year 20 (2005-2006), which included a core list of about 700 foods. Year 30 (2015-2016) included questions on usual dietary practices, habits, and beverages (and frequency of fast-food intake). Year 35 (2021-2022) will continue the same dietary data and outcome collection. Efforts were made to schedule follow-up visits within a time window of several weeks from the baseline visit date, which would help to minimize any effect of seasonal variation.