Attempting to collect the balance due at the time of service can serve for income purposes. It can guarantee that the doctors and the people involved with the procedure can get paid and the costumer will have the chance to access a proceudure. But actualy there are more disadvantages because the medical body can be sued and that they can not get paid if the patient does not feel that the procedure was good. It doesn't cover some expenses and it may not be comfortable neither for the patient nor for the doctors
It is difficult to treat, and there are no treatments with proven effectiveness.
Blood type O, it can be given to other types, but it can not receive other types, because of the different properties in the blood.
Sodium would have to be the most unhealthy for these fat-free food diets. Eating less sodium helps with high blood pressure issues, so eating sodium can affect that and that's why it would be the most unhealthy out of all of these.
Sugar would have to be one of the other bad ones, because its bad for your teeth and it has a bunch of calories and NO nutrients. The worst kinds of sugar are sucrose, aspartame, and high-fructose corn syrup.