Families now stuffing backpacks and greeting the children’s new teachers face a crisis that makes falling test scores and rising college costs dull by comparison. Ten years and billions of dollars into the fight against childhood fat, it’s clear that the campaign has been a losing battle. According to a report released last week by the research group Trust for America’s Health, one third of kids nationwide are overweight now; other stats show that the percentage of children who are obese has more than tripled since the 1970s. Now, experts are worrying about the collateral damage, too: A 2006 University of Minnesota study found that 57 percent of girls and 33 percent of boys used cigarettes, fasting, or skipping meals to control their weight and that diet-pill intake by teenage girls had nearly doubled in five years. Last year, nearly 5,000 teens opted for liposuction, according to the American Society of Plastic Surgeons-more than three times the number in 1998, when experts first warned of a ‘childhood obesity epidemic.’ ‘We’ve taken the approach that if we make children feel bad about being fat or scare them half to death, they’ll be motivated to lose excess weight,’ says Joanne Ikeda, […]