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Page: << Prev | 1 | 2 Children for whom fat represented at least 35 percent of calories, as well as those whose diets were less than 30 percent fat, gained more weight than those who took in moderate amounts of fat -- meaning 30 percent to 35 percent of calories.
By early adolescence, children with high-fat diets had an average skinfold measurement of 104.6 millimeters of body fat, while those with low-fat diets had an average skinfold measurement of 92.2 millimeters. Those with more moderate diets had a more reasonable 74.7 millimeters of body fat.
Furthermore, children with the lowest consumption of dairy products (less than one-and-one-quarter servings per day for girls and less than one-and-three-quarter servings per day for boys) gained the most weight -- about three millimeters more skinfold fat each year -- than children in the other two groups. And children who ate more fruits and vegetables gained less fat.
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While people who eat less fat often compensate by eating more carbohydrates, this does not appear to have been a factor among these children, says study author Lynn Moore, director of the Framingham Children's Study and an associate professor of medicine at Boston University School of Medicine.
Rather, she says, lower consumption of dairy products, such as milk, seems to have been the culprit.
"One thing that does stand out about low-fat diets is that there was a lower intake of dairy," Moore says. "In this study, the strongest factor for excess body fat gain between preschool and adolescence was dairy intake In many cases, sodas have replaced dairy in the American diet."
There may be several different mechanisms at play here. "It may be linked at the intracellular level to how fat is stored," Moore postulates. There may also be other compounds in dairy that affect how weight is regulated and how glucose is metabolized. Dairy may also help kids feel full so they don't eat as much.
People may be consuming less dairy because they erroneously equate it with too much fat, which is not necessarily the case, especially if you opt for low-fat or skim milk, Moore says.
More information
For more on children's nutrition, visit the USDA/ARS Childrens Nutrition Center at Baylor College of Medicine (www.bcm.tmc.edu ). For more on childhood obesity, visit the American Obesity Association (www.obesity.org ). Page: << Prev | 1 | 2
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