Which is not a characteristic of Bulimia nervosa? malnourished and dehydrated

damage to the enamel of their teeth

lowered immune function

normal weight or overweight

How is the central idea developed further? (a) the author elaborates on the treatments for allergies in adults and how they work. (b) the author quotes the reactions of experts and the methods used to conduct the study. (c) the author compares the different rates of food allergies shown in children and adults. (d) the author indicates the limitations of the study because of differences in health care.