Banning sodas is a lot different than refusing to let government money subsidize their purchase

5% of food stamps supposedly go to sodas.  Instead of regulating everyone's intake of sodas, why not ban letting food stamp dollars being spent on them?

food stamps, makes up about $80 billion of the $100 billion a year cost of the farm bill, providing aid to some 46 million people. . . .

From the Washington Post:

The 42 million Americans receiving federal food stamps use those benefits to buy $4 billion of soda every year, according to the Center for Science in the Public Interest. . . .