@article{3164963, title = "Plasma Elaidic Acid Level as Biomarker of Industrial Trans Fatty Acids and Risk of Weight Change: Report from the EPIC Study", author = "Chajes, Veronique and Biessy, Carine and Ferrari, Pietro and Romieu, and Isabelle and Freisling, Heinz and Huybrechts, Inge and Scalbert, and Augustin and de Mesquita, Bas Bueno and Romaguera, Dora and Gunter, Marc and J. and Vineis, Paolo and Hansen, Camilla Plambeck and Jakobsen, Marianne and Uhre and Clavel-Chapelon, Francoise and Fagherazzi, Guy and and Boutron-Ruault, Marie-Christine and Katzke, Verana and Neamat-Allah, and Jasmine and Boeing, Heiner and Bachlechner, Ursula and Trichopoulou, and Antonia and Naska, Androniki and Orfanos, Philippos and Pala, Valeria and and Masala, Giovanna and Mattiello, Amalia and Skeie, Guri and and Weiderpass, Elisabete and Agudo, Antonio and Maria Huerta, Jose and and Ardanaz, Eva and Jose Sanchez, Maria and Dorronsoro, Miren and Ramon and Quiros, Jose and Johansson, Ingegerd and Winkvist, Anna and Sonested, and Emily and Key, Tim and Khaw, Kay-Tee and Wareham, Nicolas J. and and Peeters, Petra H. M. and Slimani, Nadia", journal = "PLOS ONE", year = "2015", volume = "10", number = "2", publisher = "Public Library of Science", doi = "10.1371/journal.pone.0118206", abstract = "Background Few epidemiological studies have examined the association between dietary trans fatty acids and weight gain, and the evidence remains inconsistent. The main objective of the study was to investigate the prospective association between biomarker of industrial trans fatty acids and change in weight within the large study European Prospective Investigation into Cancer and Nutrition ( EPIC) cohort. Methods Baseline plasma fatty acid concentrations were determined in a representative EPIC sample from the 23 participating EPIC centers. A total of 1,945 individuals were followed for a median of 4.9 years to monitor weight change. The association between elaidic acid level and percent change of weight was investigated using a multinomial logistic regression model, adjusted by length of follow- up, age, energy, alcohol, smoking status, physical activity, and region. Results In women, doubling elaidic acid was associated with a decreased risk of weight loss ( odds ratio ( OR) = 0.69, 95% confidence interval ( CI) = 0.55- 0.88, p = 0.002) and a trend was observed with an increased risk of weight gain during the 5- year follow- up ( OR = 1.23, 95% CI = 0.97- 1.56, p = 0.082) ( p- trend<. 0001). In men, a trend was observed for doubling elaidic acid level and risk of weight loss ( OR = 0.82, 95% CI = 0.66- 1.01, p = 0.062) while no significant association was found with risk of weight gain during the 5- year follow- up ( OR = 1.08, 95% CI = 0.88- 1.33, p = 0.454). No association was found for saturated and cismonounsaturated fatty acids. Conclusions These data suggest that a high intake of industrial trans fatty acids may decrease the risk of weight loss, particularly in women. Prevention of obesity should consider limiting the consumption of highly processed foods, the main source of industrially- produced trans fatty acids." }