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May 6, 2026Food, Nutrition and Health.Open Access

Association between dietary iron intake from natural food sources and the likelihood of abdominal aortic calcification in US adults: a population-based study

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Authors

DLDan LiangCLChang' an LiuXZXingyu Zhang

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Overview

Population-based study investigates the impact of dietary iron on abdominal aortic calcification risk, suggesting implications for clinicians.

Key Points

  • This study examines the relationship between dietary iron intake and abdominal aortic calcification risk in middle-aged and older US adults.
  • Analyzed data from the 2013-2014 National Health and Nutrition Examination Survey (NHANES).
  • Employed multivariate linear and logistic regression models to evaluate associations with AAC score.
  • Performed restricted cubic spline modeling for potential non-linear relationships.
  • Higher dietary iron intake was associated with a reduction in AAC score (β = −0.03; 95% CI: −0.04 to −0.02).
  • Participants in the highest tertile of dietary iron intake had a 60% lower risk of severe AAC (OR = 0.40; 95% CI: 0.20 to 0.81).
  • Subgroup analyses indicated significant influences of age, alcohol consumption, and smoking on AAC scores.

Cite This Study

Liang et al. (2026) studied this question.

synapsesocial.com/papers/69fadaab03f892aec9b1e60ahttps://doi.org/10.1007/s44403-026-00060-5
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