I was thinking exactly this. People consume processed foods because they highjack our evolutionary responses. If GLP1 agonists make people immune to those high fat, big carb diets, perhaps we would see a decline of these strategies and instead seeing companies compete for the low appetite of people through smaller quantity yet high quality foods, rather than fast large quantity food.
This feels overly optimistic. You want to optimize for existing foods that are still high fat big carb and don't have the quality qualifier. I'm not familiar with the biological pathways that GLP1 operates on but I'm sure food companies will be working on adversarial products
