BACKGROUND: Several studies have shown that dietary isoflavones are negatively correlated with total cholesterol and low-density lipoprotein cholesterol. However, few studies have investigated the link between dietary isoflavones and remnant cholesterol (RC). OBJECTIVES: We used the National Health and Nutrition Examination Survey (NHANES) database to explore the association between dietary isoflavone intake and RC. METHODS: A cross-sectional study was conducted with 4731 participants aged ≥ 20 years from the 2007-2008, 2009-2010, and 2017-201...