TY - JOUR TI - Macronutrient Composition of the Diet and Prospective Weight Change in Participants of the EPIC-PANACEA Study AU - Vergnaud, Anne-Claire AU - Norat, Teresa AU - Mouw, Traci AU - Romaguera, AU - Dora AU - May, Anne M. AU - Bueno-de-Mesquita, H. Bas AU - van der Daphne, AU - A. AU - Agudo, Antonio AU - Wareham, Nicholas AU - Khaw, Kay-Tee and AU - Romieu, Isabelle AU - Freisling, Heinz AU - Slimani, Nadia AU - Perquier, AU - Florence AU - Boutron-Ruault, Marie-Christine AU - Clavel-Chapelon, AU - Francoise AU - Palli, Domenico AU - Berrino, Franco AU - Mattiello, Amalia AU - and Tumino, Rosario AU - Ricceri, Fulvio AU - Rodriguez, Laudina and AU - Molina-Montes, Esther AU - Amiano, Pilar AU - Barricarte, Aurelio and AU - Chirlaque, Maria-Dolores AU - Crowe, Francesca L. AU - Orfanos, Philippos AU - and Naska, Androniki AU - Trichopoulou, Antonia AU - Teucher, Birgit and AU - Kaaks, Rudolf AU - Boeing, Heiner AU - Buijsse, Brian AU - Johansson, AU - Ingeged AU - Hallmans, Goran AU - Drake, Isabel AU - Sonestedt, Emily and AU - Jakobsen, Marianne Uhre AU - Overvad, Kim AU - Tjonneland, Anne and AU - Halkjaer, Jytte AU - Skeie, Guri AU - Braaten, Tonje AU - Lund, Eiliv and AU - Riboli, Elio AU - Peeters, Petra H. M. JO - PLOS ONE PY - 2013 VL - 8 TODO - 3 SP - null PB - Public Library of Science SN - null TODO - 10.1371/journal.pone.0057300 TODO - null TODO - Background: The effect of the macronutrient composition of the usual diet on long term weight maintenance remains controversial. Methods: 373,803 subjects aged 25-70 years were recruited in 10 European countries (1992-2000) in the PANACEA project of the EPIC cohort. Diet was assessed at baseline using country-specific validated questionnaires and weight and height were measured at baseline and self-reported at follow-up in most centers. The association between weight change after 5 years of follow-up and the iso-energetic replacement of 5% of energy from one macronutrient by 5% of energy from another macronutrient was assessed using multivariate linear mixed-models. The risk of becoming overweight or obese after 5 years was investigated using multivariate Poisson regressions stratified according to initial Body Mass Index. Results: A higher proportion of energy from fat at the expense of carbohydrates was not significantly associated with weight change after 5 years. However, a higher proportion of energy from protein at the expense of fat was positively associated with weight gain. A higher proportion of energy from protein at the expense of carbohydrates was also positively associated with weight gain, especially when carbohydrates were rich in fibre. The association between percentage of energy from protein and weight change was slightly stronger in overweight participants, former smokers, participants >= 60 years old, participants underreporting their energy intake and participants with a prudent dietary pattern. Compared to diets with no more than 14% of energy from protein, diets with more than 22% of energy from protein were associated with a 23-24% higher risk of becoming overweight or obese in normal weight and overweight subjects at baseline. Conclusion: Our results show that participants consuming an amount of protein above the protein intake recommended by the American Diabetes Association may experience a higher risk of becoming overweight or obese during adult life. ER -