Could eating too much babybel cheese have bad effect?

Yes: It can have a bad effect but just how bad....not terrible. Cheese is a fatty meal so it will elevate your lipid levels It also may bind you making you somewhat constipated. Other than this not much else.

Cheese fattening.: Cheese is fattening, so eating too much cheese of any sort could promote overweight. Granted the Babybel cheeses are little things, but there's be healthier, leaner choices you could make.