Funded in part by Egg Nutrition Center
Whole egg consumption and cognitive function among US older adults
An R, Li D, McCaffrey J, Khan N
Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 9 citations
Review labels
Neutral facts our review recorded about how this study was done. They describe method, never whether we like the result.
How it was studied
- Design
- Cross-sectional study (indexed by PubMed)
- Studied in
- People
- Main outcome
- Health markers and function
- Intake measured by
- Food diaries or recalls
Who paid for it
- Funding
- Industry funded
- Industry group
- Egg Nutrition Center
Based on 1 listed funder(s).
Publication
- Published
- 2021-11-28 · J Hum Nutr Diet · vol. 35 · issue 3 · pp. 554–565
- Publisher
- Wiley
- Cited
- 12 citations · more than 81% of similar papers · 1.3× the field average
- References
- 36 works
- Access
- Paywalled
- Research areas
- Nutritional Studies and Diet · Consumer Attitudes and Food Labeling · Obesity, Physical Activity, Diet
- Keywords
- Digit symbol substitution test, Medicine, Cognition, Gerontology, Cognitive test, Verbal fluency test, National Health and Nutrition Examination Survey, Logistic regression, Effects of sleep deprivation on cognitive performance, Trail Making Test, Test (biology), Environmental health, Neuropsychology, Psychiatry, Population
- MeSH
- humans, nutrition surveys, cross-sectional studies, cognition, neuropsychological tests, aged
4 authors
From US
- Ruopeng AnWashington University in St. Louis
- Danyi Li · correspondingWashington University in St. Louis
- Jennifer McCaffreyUniversity of Illinois Urbana-Champaign
- Naiman A. KhanUniversity of Illinois Urbana-Champaign
Abstract
Background
Eggs are an affordable food providing many shortfall nutrients with the potential to improve cognitive health. We assessed the relationship between whole egg consumption and cognitive functioning among a US nationally representative sample of older adults.
Methods
Individual-level data (2816 adults, aged ≥ 60 years) were obtained from the National Health and Nutrition Examination Survey (NHANES) 2011-2012 and 2013-2014 waves. Cognitive assessments included the Consortium to Establish a Registry for Alzheimer's Disease Word List Learning Test (CERAD-WL), Word List Recall Test (CERAD-DR), Animal Fluency Test (AF) and Digit Symbol Substitution Test (DSST). A composite cognitive z-score was constructed based on the individual tests to represent one's overall cognitive functioning. Multiple linear and logistic regressions were performed to examine the effect of whole egg consumption on cognitive functioning, adjusting for individual characteristics and survey design.
Results
Approximately 57% of older adults consumed whole eggs, with an average daily intake of 34 g of whole egg equivalent among consumers. The average z-scores of the CERAD-WL, CERAD-DR, AF and DSST tests were -0.08, 0.23, 0.37 and 0.42, respectively, and the overall composite cognitive z-score was 0.24 among older adults. Regression analyses found that neither whole egg consumption status, nor daily intake quantity was associated with cognitive test scores.
Conclusions
No association was found between whole egg consumption and cognitive functioning among US older adults. Study limitations included cross-sectional study design and measurement errors. Future studies with longitudinal or experimental design are warranted to examine the possible link between egg consumption and cognition in older adults.
Abstract via Europe PMC. Copyright remains with the authors or publisher.
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