Omega-3 fatty acid is also found in butter and cream from pastured cattle, not grain fed, and eggs from pastured hens. The ratio of omega-6 to omega-3 is much closer to the ideal ratio of 1-1 in fat from cattle and pigs in pastured animals eating the diet they evolved to eat, not grain and bean fed animals. The meat from wild game is also closer to the ratio of 1-1.
Dr. Andrew Weil has a good article on Balancing Omega-3 and Omega-6, Balancing Omega-3 and Omega-6? - Dr. Weil
Nuts and seeds do have omega-3 fatty acids in them. Good article with a 0-6 to 0-3 ratio chart for a few foods including some fish, vegetable oils, seeds and nuts at Peak Performance Online.
Elimination of commercial salad oils and products that contain processed vegetable oils from ones diet would be beneficial to ones overall health. Good alternatives to processed oils are Virgin Coconut oil, Virgin avocado oil and Extra Virgin olive oil.