Overweight children are due to a genetic predisposition, and not the result of poor lifestyle. This conclusion, British scientists of the study with five thousand pairs of twins, according to the American Journal of Clinical Nutrition. Professor Jane Vardl (Jane Wardle) and his colleagues from University College London analyzed data on the body mass index (a standard medical index, calculated by the ratio of height and weight) and waist circumference of identical and fraternal twins aged 8 to 11 years old. Identical twins have identical genes and fraternal twins differ genetically, but also brought in the same conditions (diet, exercise) - that twin studies are considered the best way to assess the effect of genes and environment in the development of certain features. Scientists have found that the differences in body mass index and waist circumference of 77% determined by genes. Thus, the contribution of environmental factors is only 23%. "No reason, all the blame for overweight child to its parents dump - it's usually because of a genetic predisposition is," - said Vardl. At the same time, a high genetic predisposition does not necessarily mean that a child is overweight, she said. Commenting on the study, the researchers found that parents of children who are likely to be overweight, have put special effort to prevent the development of obesity, especially to adjust their diet and increasing physical activity. Children who are overweight in adulthood are often overweight or obese, which is a risk factor for diabetes, cardiovascular disease, stroke and certain types of cancer warn experts.
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