dr. lustig.i was wondering if you could speak little bit to other disease in addition to obesity, such as autoimmune disease. >> autoimmune disease is a grab bag. this is being televised, taped. and i am about the science. the science on auto immune disease is very much an open question. so i am a little loathe to tell you how all of this might tie into autoimmune disease, other than to say that people are working on it. i am very interested, but i am not willing to go public on it. not until we have hard science. so i'm going to have to beg the question right now. sorry. >> dr. lustig, i just wanted to make one brief comment about the idea of if you are taking something away, what are you giving? if you take away sugar, what is the reward? >> i have never said take it away. >> reduce exposure. >> reduce availability. to a manageable level. i never said take it away. a lot of people say i say that, but i have never said that. do not put words in my mouth. >> if we reduce the exposure to added sug