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Depress Anxiety. 2016 Nov;33(11):1065-1072. doi: 10.1002/da.22516. Epub 2016 Apr 20.

NUT CONSUMPTION IS ASSOCIATED WITH DEPRESSIVE SYMPTOMS AMONG CHINESE ADULTS.

Su Q1,2, Yu B1,2,3, He H1,2,4, Zhang Q5, Meng G1,2,6, Wu H1,2, Du H1,2, Liu L5, Shi H5, Xia Y1,2, Guo X1,2, Liu X1,2, Li C1,2, Bao X1,2, Gu Y1,2, Fang L1,2, Yu F1,2, Yang H1,2, Sun S5, Wang X5, Zhou M5, Jia Q5, Zhao H5, Song K5, Niu K1,2,5.

Author information

1
Nutritional Epidemiology Institute, Tianjin Medical University, Tianjin, China.
2
School of Public Health, Tianjin Medical University, Tianjin, China.
3
Institute of Psychology, Tianjin Medical University, Tianjin, China.
4
Tianjin Binhai New Area Dagang Hospital, Tianjin, China.
5
Health Management Centre, Tianjin Medical University General Hospital, Tianjin, China.
6
Department of Toxicology, School of Public Health, Tianjin Medical University, Tianjin, China.

Abstract

BACKGROUND:

Affective disorders, especially depressive symptoms, bring such a burden to mortality and morbidity that they are associated with physical and psychological health and quality of life. Nuts, a foodstuff rich in multiple micronutrients, macronutrients, and other useful components, were considered to be a protector against depressive symptoms. Here, we conducted an analysis to examine the relationship between nut consumption and depressive symptoms.

METHODS:

The study performed a cross-sectional study to examine whether nut consumption is related to depressive symptoms among 13,626 inhabitants in Tianjin. Nut consumption was assessed using a validated food frequency questionnaire and depressive symptoms was assessed using the Chinese version of 20-item Self-rating Depression Scale (SDS) with four cutoffs (40, 45, 48, and 50) to indicate elevated depressive symptoms.

RESULTS:

The prevalence of depressive symptoms was 38.7, 19.1, 11.4, and 7.3% for SDS ≥40, 45, 48, and 50, respectively. After adjustments for potential confounding factors, the odds ratios (95% confidence interval) of having elevated depressive symptoms with SDS ≥40 by increasing frequency of nut consumption were 1.00 for <once per week (reference), 0.82 (0.75, 0.90) for 1-3 times per week, and 0.82 (0.73, 0.92) for ≥4 times per week. Similar relations were observed with the use of other cutoffs as a definition of depressive symptoms.

CONCLUSION:

The present study is the first to find that nut consumption is independently associated with depressive symptoms. It is suggested that nut consumption may be beneficial to the prevention of depressive symptoms.

KEYWORDS:

cross-sectional studies; depressive symptoms; nuts

PMID:
27097046
DOI:
10.1002/da.22516

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