Nutrients · 2024
Association of the Composite Dietary Antioxidant Index and Consumption Time with NAFLD: The U.S. National Health and Nutrition Examination Survey, 2017-2020.
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Zhang Kening, Xu Yan, Zhang Nan, Liang Xi, Zhang Huaqi, Liang Hui
Аннотация
BACKGROUND: The timing of food intake can affect the physiological and metabolic functions of the body. However, whether and how the timing of dietary antioxidant intake could influence non-alcoholic fatty liver disease (NAFLD) is largely unknown. The Composite Dietary Antioxidant Index (CDAI) serves as a comprehensive measure that encompasses various dietary antioxidants. This study aims to investigate the association between the meal timing of CDAI and NAFLD in American adults.
METHODS: We used data from the 2017-2020 National Health and Nutrition Examination Survey (NHANES). Dietary intake was assessed through the implementation of two non-concurrent 24-h dietary recalls. Vibration-controlled transient elastography was employed to assess the controlled attenuation as an indicator of NAFLD. CDAI across the day (total, breakfast, lunch, dinner) and Δ CDAI (Δ = dinner-breakfast) were categorized into quartiles. Weighted logistic regression models and restricted cubic splines were used to evaluate the association between the meal timing of CDAI and NAFLD.
RESULTS: Of the 6570 participants in this study, 1153 had NAFLD. Participants in the highest quartile of total CDAI levels had a lower risk of NAFLD compared with the lowest quartile (OR = 0.52; 95% CI, 0.38-0.71). More importantly, participants in the highest quartile of dinner CDAI, but not those in that of breakfast or lunch, had a lower risk of NAFLD (OR = 0.54; 95% CI, 0.40-0.73) compared with the lowest quartile. The restricted cubic splines indicated a linear relationship between total CDAI and NAFLD (Pfor nonlinearity = 0.70), as well as between dinner CDAI and NAFLD (Pfor nonlinearity = 0.19). Stratification analyses revealed that the effect of dinner CDAI on NAFLD varied between non-Hispanic Whites and individuals of other races (Pfor interaction = 0.032).
CONCLUSIONS: these findings suggest the potential beneficial effects of an antioxidant-rich diet and strategic meal timing on NAFLD.
METHODS: We used data from the 2017-2020 National Health and Nutrition Examination Survey (NHANES). Dietary intake was assessed through the implementation of two non-concurrent 24-h dietary recalls. Vibration-controlled transient elastography was employed to assess the controlled attenuation as an indicator of NAFLD. CDAI across the day (total, breakfast, lunch, dinner) and Δ CDAI (Δ = dinner-breakfast) were categorized into quartiles. Weighted logistic regression models and restricted cubic splines were used to evaluate the association between the meal timing of CDAI and NAFLD.
RESULTS: Of the 6570 participants in this study, 1153 had NAFLD. Participants in the highest quartile of total CDAI levels had a lower risk of NAFLD compared with the lowest quartile (OR = 0.52; 95% CI, 0.38-0.71). More importantly, participants in the highest quartile of dinner CDAI, but not those in that of breakfast or lunch, had a lower risk of NAFLD (OR = 0.54; 95% CI, 0.40-0.73) compared with the lowest quartile. The restricted cubic splines indicated a linear relationship between total CDAI and NAFLD (Pfor nonlinearity = 0.70), as well as between dinner CDAI and NAFLD (Pfor nonlinearity = 0.19). Stratification analyses revealed that the effect of dinner CDAI on NAFLD varied between non-Hispanic Whites and individuals of other races (Pfor interaction = 0.032).
CONCLUSIONS: these findings suggest the potential beneficial effects of an antioxidant-rich diet and strategic meal timing on NAFLD.