Sugar is no more damaging now than it was in the 50's. It is simply that the US government and its agencies tried to show Sugar in the worst possible light. And the gullible public fell for it, anybody surprised?
Pseudoscience is when we are told that Sugar is bad for us because it is refined, and then we are told that unrefined sugar is just as bad. Where are the population studies that show the ill effects of sugar? Why do the Swiss who consume more sugar than the other Europeans live longer? Probably they havent been brainwashed into believing that the will die young.