On several occaisons over the last fifteen years the FDA has paid for studies investigating the feasibility of making vitamins available only by prescription. Their plans included appropriations for armed FDA agents to raid bulk supplement distributors across the country.
Imagine three guys in a jail cell, one’s in there for selling crack, another is in there for heroin possession, and another for Centrum Silver.
Oh I do recall that as I wrote during one of the open comment periods against just such a law/rule. The last time Sen. John McCain was one of the supporters and sponsors of taking suppliments away!
Just last year in fact:
The FDA is Taking Action to Ban Natural Supplements
and there is always the power of the Executive Order
Obama signs legislation to make supplements and alternative health remedies illegal and that was in 2010.