Aim: The objective of the present study was toanalyze beef consumption, conjugated linoleic acid (CLA)and n-3 fatty acid (FA) serum concentration and theirrelation to salivary gland tumors (SGT). A questionnaire onnon-nutritional risk factors and a validated food frequencyquestionnaire were applied in 20 SGT and 20 control (Co)patients. Materials and Methods: Food data were processedby the Interfood v.1.3 software. Serum CLA was analyzed bychromatography. Results: Non-significant differences werefound between SGT and Co regarding lean and fatty BC andserum CLA. Serum n-3 linolenic acid concentration washigher in Co than in SGT (p=0.004). No associationsbetween BC and CLA serum concentration were found, but astrong-positive association between total energy intake andtotal fat intake and SGT were observed. A significant inverseassociation between oleic and linoleic FA intake and SGTwas recorded. Conclusion: Serum oleic and linolenic FAsshowed a significant negative association with SGT.Fil: Cittadini, María Cecilia. Universidad Nacional de Cordoba. Facultad de Medicina. Escuela de Nutrición; ArgentinaFil: Cornaglia, Paola. Universidad Nacional de Cordoba. Facultad de Medicina. Escuela de Nutrición; ArgentinaFil: Perovic, Nilda Raquel. Universidad Nacional de Cordoba. Facultad de Medicina. Escuela de Nutrición; ArgentinaFil: Joekes, Silvia. Universidad Nacional de Córdoba. Facultad de Cs.económicas. Instituto de Estadística y Demografia; ArgentinaFil: Heinze, Verónica Mariel. Universidad Adventista del Plata; ArgentinaFil: Bernal, Claudio Adrian. Universidad Nacional del Litoral. Facultad de Bioquímica y Ciencias Biológicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Actis, Adriana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Ciencias de la Salud. Universidad Nacional de Córdoba. Instituto de Investigaciones en Ciencias de la Salud; Argentin