The FDA says walnuts are drugs.
Also, "The Food and Drug Administration has banned the only over-the-counter asthma inhaler, Primatene Mist, on the grounds that it releases chlorofluorocarbons (CFCs) and is thus bad for the ozone layer."
Fortunately, some people are speaking out against the nanny state mindset. For instance, Scientific American recently urged the FDA and our politicians to "End the War on Salt".