Dietary fiber intake is positively related with cognitive function in US older adults. (March 2022)

• Record Type: Journal Article
• Authors: Sun, Wenjun; Li, Suyun; Chen, Chen; Lu, Zhonghai; Zhang, Dongfeng
• Is Part Of: Journal of functional foods. Volume 90(2022)
• Publication Date: 2022-03
• Subjects: Dietary fiber intake -- Cognitive function -- NHANES -- Cross-sectional study; AD Alzheimer's disease -- NHANES National Health and Nutrition Examination Survey -- MEC mobile examination center -- DSST Digit Symbol Substitution Test -- CERAD Consortium to Establish a Registry for Alzheimer's disease -- IQR interquartile range, Q3: the third quartile; Functional foods -- Analysis -- Periodicals; Food -- Biotechnology -- Periodicals; Nutrition -- Periodicals; 613.2
• DOI: 10.1016/j.jff.2022.104986
• Languages: English
• ISSNs: 1756-4646

Abstract

Graphical abstract: Highlights: Higher dietary and total fiber intake was significantly positively associated with cognitive function. Fruit fiber intake was positively associated with Digit Symbol Substitution Test (DSST) and animal fluency test score. Vegetable fiber intake was positively associated with DSST, CERAD word learning test and the composite cognition score. No significant interaction effect between gender and fiber intake was found. Abstract: To investigate the association between dietary fiber intake and cognitive function in the US elderly, a cross-sectional study in the National Health and Nutrition Examination Survey was conducted. Higher dietary and total fiber intake were positively associated with the composite cognition score (P for trend < 0.05). Compared with the lowest quartile of fruit fiber intake, the second quartile was positively related with Digit Symbol Substitution Test (DSST) score (β (95% CI): 1.75 (0.11, 3.38)), and the third quartile was positively related with animal fluency test score (β (95% CI): 0.71 (0.02, 1.40)). Vegetable fiber intake was positively associated with DSST, Consortium to Establish a Registry for Alzheimer's disease word learning test and the composite cognition score (β (95% CI) for the highest quartile was 2.44 (0.42, 4.47), 1.47 (0.50, 2.44), and 0.15 (0.05, 0.26), respectively). No significant interaction effect between gender and fiber intake was found.