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Health & Parenting

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Kids Who Often Diet Are Most Likely to Get Fat

WebMD Health News

Nov. 15, 2000 -- Want to make your children fat? Try putting them on frequent diets or nagging them about finishing their broccoli. An unhealthy focus on food -- often learned from parents -- leads to childhood obesity, according to findings announced at the recent meeting in Long Beach, Calif., of the North American Association for the Study of Obesity.

It's not that diets don't work for overweight children and teens. But when normal-weight kids diet, the result often is just the opposite of what is intended.

"We think periods of dieting are interspersed with periods of binge eating, and that's what's responsible for the weight gain," Alison E. Field, ScD, tells WebMD. "One of the important things is that people think dieting is a rite of passage among girls. We need to encourage moving away from the dieting mentality to taking in fewer calories and becoming more physically active -- not a diet, but a lifestyle change."

Field's team at Harvard Medical School and Brigham and Women's Hospital in Boston studied more than 10,000 boys and girls aged 9 to 14 from 1996 to 1998. They found that boys were more likely to be overweight than girls -- but that girls were far more likely to diet to lose weight, even if their weight was normal.

To see what was going on, the researchers enrolled nearly 4,000 of the children in a follow-up study. They found that normal-weight preadolescents and teens who dieted often were much more likely to become overweight than those who did not diet. The dieters also were more likely to report binge eating.

"Our data did suggest that girls who were overweight benefited from dieting," Field says. "But you don't want these girls singled out -- it is important for the whole family to become involved. All children should be encouraged to take up more activity, to find an activity they enjoy."

Parents have more of an effect on children's eating habits than they realize -- and in different ways than they might think, says Donna Spruijt-Metz, PhD. The University of Southern California researcher's team studied more than 100 black and white boys and girls from Birmingham, Ala. They found that the parents of the fattest children were most likely to try to pressure their children to eat the right foods.

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