Examples of b. omega-6 fatty acids include seeds ,nuts, and vegetable oils. Omega-6 is primarily derived from linoleic acid, which is an essential fatty acid. This means that the body cannot synthesize it, so it must be obtained from food sources. The other essential fatty acid is known as Omega-3 (alpha-linolenic acid). It is said that there must be a balance between the intake of these two fatty acids.