This report describes the dieting practices of 796 Nebraskans in grades 8 and 10. The results presented in this report are based on questions from the 1989 National Adolescent Health Survey administered to a total of 1,689 adolescents. These topics are covered: (1) incidence of dieting in adolescent males and females; (2) methods used by dieters to control weight which showed that females were more likely than males to use the methods of eating less, avoiding sweets, choosing only low calorie foods, and eating only salads, males were more likely to choose liquid diets and use laxatives; (3) comparison of the usage of little or no salt, avoiding butter, cutting off fat, and removing skin from chicken between dieters and non-dieters; (4) incidence of skipping meals between dieters and non-dieters; (5) snacking practices of dieters and non-dieters; (6) nutrition knowledge of dieters and non-dieters; (7) effects of a health education course for dieters and non-dieters; and (8) relationship of knowledge scores and snacking practices. The implications of the findings for the levels of school environment, personality, and behavior are discussed. It is noted that the promotion of health-enhancing behavior change through nutrition and/or health education can be developed at each of these levels. (ABL)