Is there any evidence that those are any healthier? If I'm going to overeat the same amount of calories eating store-bought cookies or grandma-made cookies - is my health outcome any different?
Depends on where you are. There's food additives that are used in the US that are forbidden in Europe [1]
> The E.U. says that if they can’t dismiss the possibility of harm, they can’t find an additive safe,” Galligan says. In the U.S., the bar is much lower; companies can add new ingredients to their foods without even informing the FDA. “In the U.S., it feels like the FDA is waiting to act until harm is definitely proven,” says Galligan.