To achieve similar controls over sugar (and specifically fructose) as those put in place by eg the Cigarette Labeling and Advertising Act[0] (which mandated Surgeon General's warnings on cigarette packaging), the Public Health Cigarette Smoking Act of 1970[1], and the Family Smoking Prevention and Tobacco Control Act of 2009[2], we might need to first see lawsuits similar to those against tobacco companies. Litigation played a major role in shifting public opinion and policy, eg the 1998 Tobacco Master Settlement Agreement[3].
0. https://en.wikipedia.org/wiki/Cigarette_Labeling_and_Adverti...
1. https://en.wikipedia.org/wiki/Public_Health_Cigarette_Smokin...
2. https://en.wikipedia.org/wiki/Family_Smoking_Prevention_and_...
3. https://en.wikipedia.org/wiki/Tobacco_Master_Settlement_Agre...