Great article -

http://www.jonnybowden.com/2009/03/high-fat-diet-causes-cancer-not-so-fast.html

This article highlights a few things. One is how studies can be so easily manipulated and misreported and misrepresented. The other is something that many studies have shown, and many natural health advocates have been saying: Polyunsaturated oils and fatty acids are NOT the 'health' oils they've been touted as being. In fact it is just the opposite - they are a factor in many diseases and problems, and have contributed to giving other healthful fats a bad name. Polyunsaturated oils (such as sunflower, safflower, corn, soy, etc.). are primarily the vegetable oils - the Omega 6 oils (linoleic acid) that usually have also been damaged by the refining process in addition to the body not being able to handle very much of these oils in general. Mainstream dietary wisdom is about 20 years behind in the research in this area. The human body is designed to use saturated fats and monounsaturated fats that are unrefined as a primary energy source, with a very little bit of the polyunsaturated oils that might be present in seeds that are consumed.