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Montonen, J., Boeing, H., Fritsche, A., Schleicher, E., Joost, H.G., Schulze, M.B., Steffen, A. and Pischon, T. (2013) Consumption of Red Meat and Whole-Grain Bread in Relation to Biomarkers of Obesity, Inflammation, Glucose Metabolism and Oxidative Stress. European Journal of Nutrition, 52, 337-345.
https://doi.org/10.1007/s00394-012-0340-6

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• TITLE: Association between Dietary Collagen Consumption and Telomere Length: National Health and Nutrition Examination Survey

  AUTHORS: Huifeng Jin, Rolando L. Maddela, Robert A. Sinnott

  KEYWORDS: Telomere Length, Dietary Collagen, NHANES, Linear Regression

  JOURNAL NAME: Health, Vol.15 No.10, October 24, 2023

  ABSTRACT: Background: Bioactive peptides derived from hydrolyzed collagen have broad physiological functions and beneficial effects on human health, ranging from reducing skin aging to modifying lipid metabolism. Telomere length shortening is an established biomarker of cellular aging. It is not known if collagen consumption is associated with telomere length protection. Our purpose was to investigate the relationship between dietary collagen consumption and telomere length in a nationally representative US adult population. Methods: We analyzed the data of 6173 adults aged 20 - 84 from the National Health and Nutrition Examination Survey (NHANES) 1999-2002. Multivariable linear regression and a generalized additive model with smoothing plot were used to assess the association between the total collagen consumption and log-transformed leukocyte telomere length (LTL). Results: Compared with the lowest quartile of total collagen (Q1), we found that the second quartile of collagen (Q2) consumption (1.36 - 3.40 g/1000kcal) was positively associated with telomere length (β: 0.017; 95% CI: 0.006, 0.028; P = 0.022) in the females while no association in the males (β: −0.003; 95% CI: −0.019, 0.012; P = 0.678) and overall population (β: 0.008; 95% CI: −0.002, 0.018; P = 0.141). The association in the females is nonlinear with an inflection point of 2.5 g/1000kcal (P for non-linearity: Conclusion: In conclusion, moderate dietary collagen has a positive and nonlinear association with telomere length in US females, while no significant associations were found in the males and the overall population.