All 7-Eleven Foods Now Contains Bioengineered Ingredients An American walked into a random 7-Eleven with one mission: check the ingredient labels on the pre-made food aisle. The result is chilling – sandwiches, burritos, hot dogs, pizza slices, breakfast bowls… literally every single packaged item now carries the “Contains Bioengineered Food Ingredients” warning in tiny print. He picks up product after product, and it’s the same story across the entire cooler: 100% bioengineered. No exceptions.