From: Steve Shaw - PM
Date: 26 Feb 18 - 03:09 PM
Thanks for that, DMcG. So, unless we accept the yanks' lower food safety standards and, presumably, their GM shit, they won't do a deal with us. Wow. Now that's what I call "taking back control!"
Brexiteers awake!

I read the link, but it must have changed since you read it.
Warren Maruyama, who developed the North Atlantic Trade Agreement (NAFTA) under President George H.W Bush, said the UK faced a “big problem” if it went into future trade talks while bound by EU regulations on food standards.

“Under our system Congress gets the ultimate say and if we do a free trade agreement it has to pass the Congress,” Mr Maruyama told the Telegraph.

“If American agriculture is opposed to a UK free trade agreement, I wouldn’t say it’s dead on arrival but it’s pretty close. It would be a serious hurdle.”

It doesn't say we can't have food standards, or that we must accept those of America. It says about continuing to be bound by EU restrictions.
Once clear of those, we will still be able to choose what we buy. As long as labelling is clear you will be able to choose not to buy chicken that has been chlorine washed (even if it is safer than the EU produced equivalent)