Reduce Your Intake of Seed Oils

Also from Dr Mercola:

STORY AT-A-GLANCE
Omega-6 linoleic acid (LA) is the most common fat in the American diet. Most people get 25 times more LA than they need. At most, you need about 2 grams a day, but the average American gets about 50 grams a day, thanks to the fact that most processed foods and condiments are loaded with omega-6 seed oils.
LA gets incorporated into your cell membranes where it causes inflammation. Its half-life is nearly two years, so ridding your body of stored LA completely can take up to seven years.
Eliminating LA is a marathon, not a sprint. Ineffective and potentially harmful ways of eliminating LA include extended fasting and overtaxing your body with strenuous endurance exercise.
To stop the accumulation of LA in your cells, eliminate seed oils from your diet. Cook with beef tallow, butter, ghee or coconut oil, and avoid all processed foods, restaurant foods, condiments, and animals raised on grains, such as chicken and pork.
Vitamin E, in a dose of about 2 IU – 3 IU for every gram of PUFA (not just linoleate) consumed daily may also be able to provide some protection against the inflammatory and endocrine (estrogenic, pro-cortisol) effects of linoleate and PUFA in general.
To safely encourage the elimination of LA from your body, focus on building muscle and maximizing lean muscle mass with concentric exercise, and eat a balanced diet with a ratio of 2-to-1 healthy carbs to protein.