Much like xenoestrogens, I don’t think you can completely avoid PUFAs in your diet. They’re just too prevalent. But you probably wouldn’t want to anyway, because omega-6 fatty acids play an important role in the human body, and are needed for proper nerve function, blood clotting and other things as mentioned above. The goal should be to avoid consuming more omega-6 than your body is primed to handle, from an evolutionary perspective. You can do that by cutting out vegetable oils and avoiding fried food in restaurants. If you want to take it even a step further, reduce your intake of foods that have higher amounts of PUFAs, such as nuts, seeds, commercial chicken and grain-fed pork.