 Obese children and adolescents are at risk for health problems both during their youth and as adults. They're more likely to have risk factors associated with cardiovascular disease, such as high blood pressure, elevated cholesterol, and type 2 diabetes. Parental involvement is the key to getting this epidemic under control, and a few simple changes can have a big impact. One great tip is to fill half of your plate with fruits and vegetables each time you eat. Parents should also make sure children are physically active.