The link between fructose and various metabolic disorders is far from established. I will pay more attention if ever there is widespread support for the idea from the wider scientific community. In the meantime Lustig is but one of many health gurus who get much attention (and sometimes make a living) out of commanding us to always (or never) eat some particular substance. As with all the others reading his material alone will not provide anything conclusive just one view of the matter.
There is a thread in existence for the fructose issue perhaps this should go there.
