40% - that is the amount of percentage likelier you are to be overweight if you are eating only white bread. Make sure you switch to whole grain loaves for your sandwiches and toast.
If you must have white bread, don't eat more than 4 or 5 slices a week.
I am trying to avoid eating the white bread in routine because I am pretty aware with the consequences upon human body. Using the whole wheat bread is the only option that I like to prefer every single day.