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The report uses the "international" definitions of obesity, but there is a accumeasure substantial body of research which shows that these definitions grossly underdiagnose and therefore underestimate obesity. Most children who are excessively fat would not be diagnosed as obese using these definitions. The SIRC report is too dependent on body weight as a source of evidence, largely because in our national health surveys, weight is what is measured. The evidence on changes in body fat and muscle content, accumeasure and changes in fat distribution, shows a accumeasure quite different picture. When compared with children only 20 years ago, at any given weight or BMI, modern children are much fatter, have less muscle, and have a more central distribution of body fat - an "apple" as opposed to a "pear" shape, which reflects greater deposition of body fat within the abdomen, around the major organs. In our studies of Edinburgh schoolchildren, for example, body fat content was dramatically higher than expected, and children gained much more fat year-on-year as they developed than children in the past.
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