Consider the recently proposed ban on large servings of sweetened drinks. Do these promote diabetes costing the country lots of money in eventual treatment and lost productivity? Absolutely. Does the government have any business telling me what I drink with my Quarter Pounder and Large Fries? No.

I believe the answer to something like diabetes is more nuanced, such as the promotion of healthy eating habits in general, removing the massive grain subsidies that promote the existence of lots of cheap carbs and the availability of lots of meat. I'm sure a sociologist or psychologist could come up with better ideas for promoting health diets without being excessively coercive.