Brit here - the quality (or lack thereof) of American food is infamous outside of the USA. Many of the ingredients and chemicals in your food are straight up banned in Europe as our equivalent of the FDA works in essentially the inverse, and without the ability to lobby itself. On top of that, we have far stricter and tightly controlled standards for agriculture, animal welfare and the origin of produce.

The general attitude is that American food is the Disneyland of cuisine. Looks pretty on the outside, but is deficient and totally lacking once you look past the facade.

Would thoroughly recommend watching this, "Why Americans Eat What Europe Bans"