Researchers from Telemark University College and the Norwegian Institute of Public Health have discovered that there are significant differences among normal and overweight children’s dietary habits.

The scientists assessed the eating habits and obesity rates of more than 900 fourth graders through surveys about how often certain foods were eaten. The children were also weighed and measured.

The parents of the subjects also completed a questionnaire about their own weight as well as the level of their child’s physical activity, participation and eating habits.

In their findings, the researchers concluded that overweight children drank juice and soda more often than those with a normal body mass index. The overweight individuals were also less physically active and their parents were more likely to be obese.

Anne Lise Brantsaeter, one of the study’s investigators, said that “it is important to note that the amount of healthy foods must be adapted to a child’s activity level to limit further weight gain.”

Nearly 20 percent of children aged 6 to 11 years old in the U.S. are considered obese, according to the Centers for Disease Control and Prevention. Eating healthy, participating in physical activities and balancing calorie intake all contribute to a person’s healthy weight.