Yet, trans fats are no longer permitted in food. Can you imagine any reason why? Once the consequences were known, by 1957, all use since has been in reckless disregard of terrible effects. Perhaps you have no experience of a relative killed by it.
Lead in paint and fuel is banned. Can you conceive why? Was the reason known of before the ban, or even before use? (Yes and yes.)
Sugar overconsumption is directly blamed for epidemic levels of type-II diabetes, obesity, and metabolic syndrome. The crime is not selling it, but, as in the case of tobacco, contriving to get children addicted to it.