Teenage girls in the UK eat worse than they did 10 years ago and are putting their long-term health at risk, according to preliminary findings of the National Diet and Nutrition Survey. The national survey also suggests that many girls are influenced by fashion models. But although teenage girls want to be slim, the study found that 37% of them are overweight and that 22% are clinically obese. The same survey found that 35% of boys of the same age are overweight.