I've been oil pulling for 2 weeks every morning ...15-20 minutes with organic sunflower oil. I keep reading all these amazing stories, but I have not had anything happen that makes me feel that this is doing anything. My teeth are not whiter (they are pretty white to begin with though?); my skin is not clearer; and certainly my energy is not improved. Should I switch to a different oil maybe? Do other people take a long time before they feel any positive results?