I think he means sucrose (table sugar), not starch (glucose) or lactose. Sucrose, more specifically fructose (half of sucrose), has been targeted as the bad guy. See Robert Lustig's talk, among others. Obviously cutting out ALL sugars would be a bad call.

Thanks for calling me on that. I guess I shouldn't have emphasized 'all' because I don't literally mean all.

To not be misunderstood, I meant cut soda, froot loops, twinkies, candy bars, and other assorted not-really-food items.