But if sugar is addictive, as it seems it is, this would cost a significant fraction of annual revenue to food producers, so there's no way they'd do it. Even if it's not literally addictive, it's clearly attractive and they'd take a big hit.
What baffles me is that artificial sweeteners exist and yet there is enough (imo) unfounded FUD about them that leads people to instead choose Sugar or Nothing (which inevitably translates to Sugar because of the pseudo-addictiveness you mention.) Is wireheading bad? Maybe, but if I'm going to be doing it either way I'd rather reduce the harm.
Why not dial back on the sweetness? Is it really that addictive? Why not drink water rather than cans of genuine or artificial sugar water.
FUD, sure. Personally I am uneasy about tricking my body that it is getting sugar when it is not. I am not waiting for scientific evidence.
The hippies were right. Eat food. Mostly plants. As close to raw as practical and tasty. If your great grand mother would not recognise it, it is not food.