Everyone: you simply must take responsibility for educating yourself on the methods of extracting oils. If you don't understand what the problem is with various vegetable oils, there must be a mountain of nutritional information you don't know yet. I posted something similar far below, in response to another post.
You can use these oils at your own peril - but whatever ugly stuff is in the oil, there's a two-way street, from what I understand, in swishing with that oil: you're picking crud out of your bloodstream & getting it into the oil, but conversely, there are nasty things in that oil that can be transferred into your bloodstream.
If you are not sure that the oil was extracted by expeller or cold-press methods, and that the oil was from organic (pesticide-free, grown in somewhat "clean" soils to begin with) foods to start with, you run the risk of:
- Nasty pesticides in the food
- "Normal" oil extraction goes to great lengths (chemicals, heat, etc.) to squeeze every last bit of oil out. This will concentrate things like pesticides.
- Soybeans have goitrogen compounds in them. The "proper" way to eat soybeans for good nutrient uptake, from what I understand, is in small amounts of substances made from long fermentation periods (e.g. certain soy sauces)
- Back on that chemicals & heat to extract...nasty-for-your-body solvents, such as hexane, can be used in the extraction process...the heat can damage the oils...some of the veggie oils aren't terribly heat-stable, no matter how many recommendations you hear to cook with them...they change forms with heat.
- "Normal" extraction methods produce many free radicals in the oil
I encourage you to do your own research on this issue - don't just take my word for it.
Possible beginning points to refer to:
General info on veggie oils
http://en.wikipedia.org/wiki/Vegetable_fats_and_oils
A lot of fat advice
http://www.westonaprice.org/knowyourfats/index.html
GMO-free foods
http://www.westonaprice.org/federalupdate/aa2003/actionalert_072403.html