I hope I can answer your questions for you. Unfortunately for me, I had to research such issues as this all of last year.
1. Are GM foods currently on sale in the US? Yes, 60-80% of all food you eat is in some way genetically modified.
2. If so, are they labelled as such? Genetically engineered, or GM foods, are not required to be labeled. Consequently, almost none of it is labeled.
3. Also, what GM foods are available? Just about everything you can think of, from animal products, to produce, to boxed and canned products to grains. There is virtually no food that is or has not been GMed.
4. When did the first GM foods appear on US supermarket shelves, if at all? Technically, GM foods have been around ever since men started to cross breed foods { mixing two wheat strains to make another healthier one} There was no set time when GM foods appeared.
5. What were those first GM foods? Mostly produce, and grains.
