We’ve been warned for years about the dangers of processed foods.And we know advertising shapes what we eat, especially kids, who are still figuring out what a healthy diet looks like.

Now, the South Australian government is stepping in banning ads for “unhealthy” foods on public transport from July, hoping to curb rising obesity rates. But not everyone’s on board with soy milk and a humble ham-and-salad sandwich possibly on the chopping block, critics say the ban might be throwing out the baby with the bathwater.