• Chia-Chun Kao, Zhe-Yu Yang, and Wei-Liang Chen.
• Division of Family Medicine, Department of Family and Community Medicine, Tri-Service General Hospital, Taiwan, Republic of China
• Pol. Arch. Med. Wewn. 2022 Mar 30; 132 (3).

IntroductionThe importance of fat distribution is well established. Nevertheless, the mechanism by which fat is distributed throughout the trunk and limbs remains unclear.ObjectivesThe aim of this study was to uncover the relationship between 4 trans fatty acids (TFAs) and body fat distribution in the trunk and limbs.Patients And MethodsThe study examined 1467 participants registered in the National Health and Nutrition Examination Survey database between 1999 and 2000. A cross‑sectional analysis was conducted to evaluate the relationship between TFA and body fat distribution over the trunk and limbs.ResultsIn the unadjusted model for men, trunk fat percentage was significantly associated with trans 9‑hexadecenoic acid (β = 0.250; 95% CI, 0.187-0.313; P <0.01), trans 11‑octadecenoic acid (β = 0.927; 95% CI, 0.499-1.356; P <0.01), trans 9‑octadecenoic acid (β = 1.028; 95% CI, 0.654-1.402; P <0.01), and trans 9, trans 12‑octadienoic acid (β = 0.078; 95% CI, 0.054-0.103; P <0.01). No significant association was found between limb fat percentage and TFA.ConclusionsOur study demonstrated that increased TFA concentration was associated with fat deposition predominantly in the trunk rather than in the limbs. Further research is needed to investigate the role of TFA in different body fat distributions.

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