I think that eating healthy is important. But I do not think that there should be a law forcing people to eat healthy. It is a persons right to consume what they want. Some say that people aren't educated enough to make important decisions about there food. I think people want to eat unhealthy a lot of the time. It tastes good. People don't care that it is bad for them.
The government has neither a legal nor moral right to dictate the way a person eats. The government cannot simply legislate how people can act day to day, and would never be able to do so in any way that didn't end in ruin or massive cost for no gain. Furthermore, the idea that all unhealthy food can be banned is ridiculous, especially in light of the failures of Prohibition and The War on Drugs.