The women who took the CLA had a significant decrease in their body mass index (BMI) -- about half a point on average. Their total body fat declined by about 3.2 percent. The safflower oil did not affect total body fat, but did decrease the trunk, or belly fat tissue, by 2.6 to 4.2 pounds. It also boosted muscle mass by 1.4 to 3 pounds. The safflower oil also lowered fasting blood sugar levels by 11 to 19 points. Average levels after 16 weeks of safflower oil supplements were 129 to 148, still high but significantly improved, Belury said. (Below 110 milligrams per deciliter is normal). I normally do not post stuff like this. If I had the link I would have offered it dirrectly but it was in my email so no link. I choose Safflower oil because it looked rather thin compared to Cotton Seed oil and it was cheap at my Walmart Super Center! So it might be a good idea to try it at the very least. I am going to give grape seed oil a try at some point. P.S. I would just filter any oil you wanted to try especially if it is some type of cold filtered organic stuff through a .2 Whatman and use no heat. The heat is going to hurt the health benefits I am sure and at .2 that is considered sterile with out any heat need by the USDA and the FDA so that is how I would do it. I would be afraid that puting it in an oven would destroy the health benefits and anti-oxidants and such etc...... P.S. When I first did my first kit all of them came with .2 Whattman filter now I see most of them come with .45 Whatman and I do not understand why as .45 isnot small enough to make sure no bacteria or virus's, spore and such can not pass but .2 is! I have to assume it was a problem of clogging filters which is why I do a coffee filter then .45 and then .2 into the bottle! I use no heat at all.