[yazaddaruvala]

All rules should be quantitative. Not qualitative.

Qualitative: We are banning "junk food". (What constitutes junk food?)

Quantitative: We are banning any foods where the sugar content exceeds 1% (Where this number can become increasingly stricter) of the food's mass. eg. Coke is 9% sugar[0]; 39 / (355 + 39 + 39 + .045) = 0.09.

[0] http://www.myfitnesspal.com/food/calories/coca-cola-12oz-can...

[baddox]

Of course, that's a somewhat better idea, but I was specifically responding to a claim that banning McDonald's would have a positive effect on society.

Your idea is inevitably going to have problems as well. What about selling table sugar itself? What about fruit, which can also be around 10% sugar? What about desserts and confectionery? Are we really wanting the government to ban those completely?