The labeling of GMO's started in 2020, with some exceptions for smaller companies. Up until then we had no idea if they were in our food or not. Most companies start out small with a good product only to be bought out by a large corporation who modify the products to make them more profitable... only way you will know is to read the label. Tastes and looks the same but it's not the same.... this goes for all food, including animal feed.

https://www.ams.usda.gov/r...