Association Between Dietary Fiber Intake and Heart Failure Among Adults: National Health and Nutrition Examination Survey 2009-2018.

Objective: To explore the association between dietary fiber and heart failure (HF).
Methods: Data were collected from the 2009-2018 National Health and Nutrition Examination Survey. Dietary fiber intake data were obtained from two 24-h dietary recall interviews. Logistic regression and restricted cubic spline models were used to explore the association of dietary intakes of total, cereal, fruit, and vegetable fiber with HF prevalence.
Results: A total of 21869 adults were included in this study. After adjusting for multiple confounding factors, the odds ratios (OR) and 95% confidence intervals (CI) for HF was 0.49 (0.28 to 0.87, P for trend = 0.016) for the highest tertile versus lowest tertile of total fiber intake. Similar results were observed for cereal but not fruit and vegetable fiber intake. Dose-response analysis indicated that dietary intake of total and cereal fiber were inversely associated with HF in a linear manner.
Conclusion: Intakes of total and cereal fiber were inversely associated with HF in adults.
Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. The handling editor YH declared a shared affiliation with the authors at the time of review.
(Copyright © 2022 Zhang, Lin, Chen, Gan, Zhou, Ma, Zeng, Xue, Wang, Zhan, Zeng and Xu.)