Ciao Valentina,
I found this: "They are in particularly high amounts in fatty or greasy foods, fried foods, and oils. They are also present in large amounts in nuts and seeds. Meat, even lean cuts, have a lot of fatty acid in them. On the other hand, vegetables, fruits, and starchy foods (e.g. pasta or breads) are relatively low in fatty acids." in: http://www.x-ald.nl/biochemistry-genetics/vlcfa/
I hope it was helpful.