For teenage girls, any restrictive diet can result in greater body weight problem than if they wouldn't diet at all.
A study published in the British Medical Journal, teenage girls who diet even 'moderately' are 5 times more likely to have eating and body weight problems than those who do not diet. Those on a too restrictive diet are 18 times more likely to develop a problem. Since Canadian researchers found out that 23% of teenage girls are currently dieting and about 27% of them have symptoms of eating and/or body weigh problem, the best advice for teenage girls is to eat healthy foods and exercise as much as they can to keep body weight under control.
Good foods are colorful vegetables - dark green, bright orange, red, and yellow - along with whole grains, lean meats, poultry, and fish, and 'good' fats like in olive oil, nuts, and seeds. Most teenage girls shoul not limit their calorie intake but rather increase their calorie expenditure.
School-age girls can choose more gym hours, play sports games or just dance, walk, jog, or run instead of spending hours in front of TV.