If Johnson got his way, it would mean that the UK – like the US – would lower the rules and regulations governing its food and farming industry.
Moseley warned: “Categorically, the UK’s food standards are now under threat from the commercial appetites of the United States food lobby.
“We urge government not to sacrifice legislation, which prevents these sort of products from being sold in the UK.
“British people deserve better than having their world-leading food standards sold out from underneath them.
“(Red Tractor) research shows that shoppers look for food that has been produced to the highest standards of food safety, animal welfare and traceability.
“A deal that allows illegal products to be brought into the UK lets down the British public and undermines all the investment and efforts of British farmers.
“This cannot be the right thing to do.”
The announcement follows Red Tractor's pledge to become the “flagship for quality British food at home and abroad" last week, during the launch event of its International Benchmarking Study.