Banning advertising won't work  How exactly is a ban on promoting diets supposed to work? Proposition isn't talking about tackling advertising online, presumably because it's difficult to do, nor is prop tackling the issue of books promoting certain techniques. So this ban would have failed to catch the largest craze of recent years, the Atkins diet.  Equally diets are a mainstay of teen and women's magazines and a fairly central pillar of lifestyle sections of newspapers. Even so called 'quality' papers endlessly talk about lifestyles issues such as how they don't work and everyone would be better off retiring to a country manor in Shropshire for Swedish massage and a diet of organic barley.  Unless prop is talking about starting to ban books or shut down entire sections (and profitable sections at that) of publishing companies then it is difficult to see how this measure will have any real affect.