Being fat is a known cancer risk and risk for other issues. Does UPF add anything to that? Or is the only charge against it that it's easy to eat more of it?

Being fat is a known cancer risk and risk for other issues. Does UPF add anything to that? Or is the only charge against it that it's easy to eat more of it? If so basically if you can keep your weight in check you can eat any amount of UPF without any adverse effects, right?