Original Article | Published:

Association between dietary patterns in the remote past and telomere length

European Journal of Clinical Nutrition volume 69, pages 10481052 (2015) | Download Citation

Abstract

Background/Objectives:

There are limited data on the association between dietary information and leukocyte telomere length (LTL), which is considered an indicator of biological aging. In this study, we aimed at determining the association between dietary patterns or consumption of specific foods and LTL in Korean adults.

Subject/Methods:

A total of 1958 middle-aged and older Korean adults from a population-based cohort were included in the study. Dietary data were collected from a semi-quantitative food frequency questionnaire at baseline (June 2001 to January 2003). LTL was assessed using real-time PCR during the 10-year follow-up period (February 2011 to November 2012).

Results:

We identified two major factors and generated factor scores using factor analysis. The first factor labeled ‘prudent dietary pattern’ was characterized by high intake of whole grains, seafood, legumes, vegetables and seaweed, whereas the second factor labeled ‘Western dietary pattern’ was characterized by high intake of refined grain, red meat or processed meat and sweetened carbonated beverages. In a multiple linear regression model adjusted for age, sex, body mass index and other potential confounding variables, the prudent dietary pattern was positively associated with LTL. In the analysis of particular food items, higher consumption of legumes, nuts, seaweed, fruits and dairy products and lower consumption of red meat or processed meat and sweetened carbonated beverages were associated with longer LTL.

Conclusions:

Our findings suggest that diet in the remote past, that is, 10 years earlier, may affect the degree of biological aging in middle-aged and older adults.

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Acknowledgements

This study was supported by a fund (2001-347-6111-221, 2002-347-6111-221, 2011-E71004-00 and 2012- E71005-00) by research of Korea Centers for Disease Control and Prevention and by National Research Foundation of Korea Grant funded by the Korean Government (NRF-2014R1A2A2A01004863). The funders have no role in the study.

Author information

Affiliations

  1. Department of Foods and Nutrition, College of Natural Sciences, Kookmin University, Seoul, Republic of Korea

    • J-Y Lee
    • , N-R Jun
    •  & I Baik
  2. Institute of Human Genomic Study, Korea University Ansan Hospital, Ansan, Republic of Korea

    • D Yoon
    •  & C Shin
  3. Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea

    • C Shin

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Competing interests

The authors declare no conflict of interest.

Corresponding authors

Correspondence to C Shin or I Baik.

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DOI

https://doi.org/10.1038/ejcn.2015.58

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