Ban over the counter sale of processed food, the same way heroin stopped being sold as Mr. Jims Magical Cure All.
It's not like banning additives that have proven detrimental to health is a radical new idea. We have killed hundreds of industries that killed people before, most of them in much smaller numbers than the food industrial complex.
>Empowering people to make better decisions is actually one of the best things we can do.
Looking at the state of the US, it really isn't. Taking advice from Americans on food is like taking bathing advice from Catholics in 900AD.