I haven’t read anywhere of this even being talked about in the United States, but one nation that is definitely serious about this is Italy.  Never thought about any particular diet becoming illegal or banned, just merely highly recommended not to follow, but that will or could soon change in Europe.  I suppose the other nations within the European Union will keep an eye on this and see if this actually passes.  Just like many bills that go through governments on a yearly basis, some are likely to follow.

For a diet based on the principle of ‘do no harm,‘ veganism is getting a pretty bad rep in Italy. A legislative bill (pdf in Italian) under consideration by the government’s 630-member Chamber of Deputies would slap parents who feed their children a vegan diet with up to one year in jail, and more if…

via Italy is considering jailing parents who make their kids go vegan — Quartz