There is no difference between liberals and conservatives, the answer to every problem is MORE GOVERNMENT.
What I find incredulous is that you'd rather the government not engage in a constitutional activity, so that you can have the "freedom" to buy any contaminated/adulterated food that any shady fraudster might want to sell you.
The difference between liberals and conservatives is that conservatives believe in government guided by the constitution, while liberals want to control every aspect of your life while ignoring the constitution. You're going to have to explain to me how preventing the sale of rotten, fake, or adulterated food impacts your liberty, because I honestly don't see it.
The reason you don’t see it is because the “ex-Dem” portion of your nickname is apparently wishful thinking. You can’t see it, because you lack understanding of the foundational principles underlying our Constitution.
You can fix this by educating yourself. The Founding Fathers left tons and tons of written materials explaining everything they proposed in simple terms to the public. You could start with the Federalist Papers, which are written for the lay audience. You should read John Locke and Tom Paine. Once you do, you will realize just how far from the path we’ve strayed as a nation. The Founding Fathers would be horrified and would probably have already kicked off another Revolution.