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发布时间：2025-09-11 21:05:52 来源：都市天下脉观察 作者：知识

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Doctor explains causes of children's obesity epidemic

Dr. Marc Siegel, Fox News senior medical analyst, weighs in on the MAHA Commission's report on chronic disease rates in children and explains what is contributing to the obesity epidemic on 'Fox Report.'

A genetic test could predict whether a child will be obese as an adult.

A global study, published in the journal Nature Medicine, found that the risk of severe obesity in adulthood can be identified in early childhood through a polygenic risk score (PGS).

The PGS acts as a "calculator" that combines the impact of different genetic risk variants that a person can carry, according to researchers.

YOUR DNA COULD BE STOPPING YOU FROM LOSING WEIGHT, NEW STUDY SUGGESTS

The test can be performed on children before their weight begins to shift, as early as age 5, according to a press release from the University of Copenhagen’s Novo Nordisk Foundation Center for Basic Metabolic Research (CBMR).

The researchers suggest that this may support early prevention strategies for obesity, like lifestyle interventions at a younger age.

A test can predict the risk of adult obesity in early childhood, global researchers have discovered. (iStock)

"Overall, these data show that PGSs have the potential to improve obesity prediction, particularly when implemented early in life," the researchers concluded in the study.

Lead study author Roelof Smit, assistant professor at the NNF Center, wrote in a press release statement that the score is "so powerful" due to its ability to predict adult obesity "well before other risk factors start to shape their weight later in childhood."

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"Intervening at this point can have a huge impact," he commented.

The major study was an international collaboration of human genetics researchers, consisting of more than 600 scientists from 500 global institutions, as well as the consumer genetics and research company 23andMe, Inc.

More than half of the global population is expected to be overweight or obese by 2035, according to the World Obesity Federation. (iStock)

After gathering genetic data from more than 5 million people, the scientists created what's described as the largest and most diverse genetic dataset in reported history, using that to create the PGS.

The results showed that the PGS was twice as effective as the previous best test in predicting obesity risk, accounting for approximately 17.6% of a child's risk of developing a high BMI (body mass index) as an adult.

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"This new polygenic score is a dramatic improvement in predictive power and a leap forward in the genetic prediction of obesity risk, which brings us much closer to clinically useful genetic testing," study co-author Ruth Loos, a professor from CBMR at the University of Copenhagen, said in a statement.

Researchers suggest that these findings support early prevention strategies for obesity, like lifestyle interventions at a younger age. (iStock)

The scientists also discovered that those with a higher genetic risk of obesity were more responsive to lifestyle weight loss interventions.

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These individuals also gained weight back more quickly once the interventions ended.

The researchers noted that the new PGS has its limitations, as it was "far better at predicting obesity" in those who have a European-like ancestry than in those with African ancestry.

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