GMO foods should be labeled. Why? GMO foods are mostly common in fruits and veggies. They help prevent from bacteria and superbugs and other insect. And GMO food can save lives of other animal. Which means people who eat that will be ok but the others that eat it will die, caffeine for example is really deadly for other animals but it completely good for humans. That's all i know about it, a chemical that's super deadly but good for human society.
Yes they should because not everybody is gonna want GMO foods so they should label GMO foods to let people know which one has it and which doesn't. Hope this helps, if so then please mark brainliest!