Funded in part by California Walnut Commission
Lower Depression Scores among Walnut Consumers in NHANES
Arab L, Guo R, Elashoff D
Nutrients · 25 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
- California Walnut Commission
- Government
- Centers for Disease Control and Prevention
Based on 2 listed funder(s) and full-text disclosure statement.
Publication
- Published
- 2019-01-26 · Nutrients · vol. 11 · issue 2 · p. 275
- Publisher
- Multidisciplinary Digital Publishing Institute
- Cited
- 61 citations · more than 89% of similar papers · 2.8× the field average
- References
- 27 works
- Access
- Open access (journal) · CC-BY
- Research areas
- Nuts composition and effects · Nutritional Studies and Diet · Agriculture Sustainability and Environmental Impact
- Keywords
- National Health and Nutrition Examination Survey, Depression (economics), Medicine, Environmental health, Population
- MeSH
- humans, juglans, nuts, diet, nutrition surveys, cross-sectional studies, depression, adult, middle aged, female, male
3 authors
From US
- Lenore Arab · corresponding
- Rong GuoUniversity of California, Los Angeles
- David A. ElashoffUniversity of California, Los Angeles
Abstract
Background
Multiple studies have shown a Mediterranean diet, characterized by their olive oil and nut consumption, to be correlated with lower depression risk.
Objective
To examine whether part of this reduced risk in the United States is attributable to walnut consumption, we analyzed data on walnut consumption and depression scores from the National Health and Nutrition Examination Survey (NHANES).
Methods
NHANES survey data for 2005 through 2014 was pooled for adults with 24 h recall dietary data. Depression scores were based on PHQ-9 self-report responses. A total of 26,656 participants were characterized as reporting the consumption of walnuts with high certainty, walnuts with other nuts, other nuts, or no nuts.
Results
After an adjustment for covariates, walnut consumers showed lower depression scores compared to non-nut consumers. The least square mean for total depression score was 26% lower for walnut with high certainty consumers than for non-nut consumers (p p p = 0.05). The significant contributors to this difference were due to walnut consumers reporting greater interest in doing things (p = 0.003), less hopelessness (p = 0.02), and feeling more energetic (p = 0.05) than non-nut consumers. Non-nut consumers were more likely to have trouble concentrating (p = 0.02), to feel they were moving or speaking abnormally (p = 0.03), and to have thought they were better off dead (p = 0.002).
Conclusions
Depression scores were significantly lower among nut consumers and particularly walnut consumers as compared to non-nut consumers. After controlling for potential covariates, walnut users had scores significantly lower than other nut consumers. The difference was strongest among women, who are more likely than men to report higher depression scores.
Abstract via Europe PMC. Copyright remains with the authors or publisher (CC BY).
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