Affiliations: [a] Istituto di Scienze degli Alimenti e della Nutrizione, Facoltà di Scienze Agrarie, Alimentari ed Ambientali, Università Cattolica del Sacro Cuore, Piacenza, Italy | [b] Istituto Europeo di Oncologia, Divisione di Epidemiologia e Biostatistica, Milano, Italy | [c] Servizio di Dietetica, Policlinico “Agostino Gemelli”, Università Cattolica del Sacro Cuore, Roma, Italy
Corresponding author: Francesca Maria Cicognini, Istituto di Scienze degli Alimenti e della Nutrizione, Facoltà di Scienze Agrarie, Alimentari ed Ambientali, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy. Tel.: +39 0523 599 433; Fax: +39 0523 599 259; E-mail: email@example.com.
Abstract: BACKGROUND:CLA isomers were proposed as factors affecting human health, although it is nowadays not clear if positively or not. The consciousness of CLA amount in foods is thus needed. OBJECTIVE:To investigate the CLA intake between male and female and the role of each food as CLA source and to complete the database on CLA content in Italian foods. METHODS:A three-days food questionnaire was administered to a cohort of 40 healthy students ranging from 19 to 25 years old. Data from the food diaries were combined with the database on CLA content in foods. RESULTS:In our cohort the calculated average daily CLA intake was 130.8 mg overall: males daily consumed 164.86 mg of CLA, while females 96.65 mg. Cheese accounted for more than 62% of CLA intake (P < 0.05). Milk is the second food for contribution to CLA intake (16.25 mg/day; P < 0.05), while yoghurt, meat and confectionery showed a minor contribution (8.17, 5.15, and 4.91 mg/day, respectively; P < 0.05). CONCLUSIONS:CLA intake in our cohort was lower than value proposed as biologically relevant (3 g/day). Dairy foods were the most relevant sources of CLA in both sexes.