Unless the Constitution expressly gives the government overisight, then yes, you do have the right to use vitamins.
No, that kind of thinking is how the whole "penumbra concept" BS got started. While I agree that this is unconstitutional interference in interstate trade that oesn't mean I have a right to use vitamins, what it means is the government doesn't have a right to try to crush this industry. Important difference.
Wow! Cool.
Hey, Wolfie, is that an unalienable right like the unalienable right to do drugs and the unalienable right to own a machine gun?