A reply to a few different posts in this thread.
There are a couple of different things to consider here. First, the OP process draws fat-soluble toxins out of the blood via the veins under the tongue -- we OP for 20 minutes because that is the amount of time it takes for the blood in the body to circulate through those veins -- I think Trapper has called OP a "mini-dialysis." While we are urged to drink a lot of water to flush toxins out of the body, water can't transport fat-soluble toxins -- it's only another fat that will do that -- hence, oil pulling.
A while back (I searched for the post, but wonder if it's among the stuff that was lost a week or so ago and has not been restored -- sorry) someone a did a microscopic analysis under a microscope of "used" oil and I think the result was bacteria and oocytes ( parasite
eggs). I would imagine there's more that might not be apparent with a microscope. The oilpulling.com site says not to swallow the oil, and I tend to follow that advice -- I'm not sure that even though that stuff is already in our bodies, that what is in the blood should be sent into the stomach! (I mean, by that logic, would you inject feces into your bloodstream?)
Larx, I love using flax and coconut oils, and they are certainly some of the favorites of many around here. But I don't use them for OP because I am on a pretty tight budget, and like you I don't want those nutrition dollars to get spat out and thrown away! I tend to eat the super-oils, and I still have good OP results from using sesame, sunflower, walnut, etc. I do look forward to the day when I can use coconut oil for swishing, but when I was doing that I kept feeling like I was depriving my children of it...so I stick with the best oils I can buy guilt-free in the non-peanut/canola/soy/corn realm. I do wonder about the extent of absorption of the oils' nutrients, but I assume that we do receive nutritional benefits of the oils because the sublingual veins are so permeable -- hence sublingual medications.
Hope everyone has a great weekend, and happy pulling!