When expressing your concern to an anorexic or bulimic individual, avoid any mention of his or her weight or eating habits.
Mentioning to an anorexic or bulimic individual about weight or eating habits should not happen if they are uncomfortable with the situation. It is also not a way to solve the problem, as it will likely make things worse. Anorexia and bulimia are both life-threatening conditions that have to do with somebody's weight.