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ORIGINAL RESEARCH article

Front. Public Health
Sec. Aging and Public Health
Volume 12 - 2024 | doi: 10.3389/fpubh.2024.1482959
This article is part of the Research Topic Nutritional Interventions for Controlling the Aging Process View all articles

Association between the Planetary Health Diet Index and biological aging among the U.S. population

Provisionally accepted
Shaoqun Huang Shaoqun Huang 1Haoying Hu Haoying Hu 2Hongyang Gong Hongyang Gong 3*
  • 1 Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, China
  • 2 Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, China
  • 3 Chosun University, Gwangju, Republic of Korea

The final, formatted version of the article will be published soon.

    Background: The Planetary Health Diet (PHD) is a novel dietary pattern proposed by the EAT-Lancet Commission in 2019, yet a limited study has investigated the anti-aging effects of PHD to date. Objectives: This study aimed to explore the association between adherence to PHD, as quantified by the Planetary Health Diet Index (PHDI), and biological aging in American populations. Methods: Data were obtained from the National Health and Nutrition Examination Survey (NHANES) for 1999-2018. Food consumption information was relied on two 24-hour diet recall questionnaires. The biological aging condition was comprehensively assessed by four biological markers, including phenotypic age, biological age, telomere length, and klotho concentration. Weighted multivariate linear models, restricted cubic spline (RCS), and subgroup analysis were subsequently carried out to evaluate the influence of PHDI on biological aging. Results: 44,925 participants with complete data were finally enrolled in our study. The fully adjusted models showed decreased 0.20 years in phenotypic age [-0.20 (-0.31, -0.10)] and declined 0.54 years in biological age [-0.54 (-0.69, -0.38)] correlated with PHDI per 10 scores increment. Klotho concentration [6.2 (1.0, 11.0)] was positively related to PHDI. In Model 2, telomere length increased by 0.02 bp for every 10-point rise in PHDI. Besides, the RCS analysis results exhibited a curvilinear relationship between PHDI and four indicators.Our study explored a significant correlation between PHDI and biological aging, indicating that adherence to PHD may prevent biological aging.

    Keywords: Planetary Health Diet Index, biological aging, NHANES, U.S. population, Association

    Received: 20 Aug 2024; Accepted: 10 Oct 2024.

    Copyright: © 2024 Huang, Hu and Gong. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Hongyang Gong, Chosun University, Gwangju, Republic of Korea

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.