I used to throw up every time I tried. Now I've learned if I make a LOT of fresh lemon juice and some lime(makes it taste much better) juice to drink after I drink the OO(in my case sunflower oil.. doesn't gross me out as much if I throw it up) lemon juice concoction, I don't throw up. And I drink a small amount of some soda after I get up(I have to buy it purposefully because I don't keep it around usually), it scrapes the rest of the oil out of my stomach.