Researchers analyzed data from a large, ongoing national health survey called NHANES to see how common obesity and severe obesity were among children and teenagers in the United States. They looked at information from people aged 2 to 19 years old, collected between 1999 and 2018. The study did not test any treatments or lifestyle changes; it simply measured how many young people fell into these weight categories over time.
The main finding was that the percentage of children and teens with obesity increased from 13.9% in the 1999-2000 period to 19.3% in the 2017-2018 period. The percentage with severe obesity also rose, from 3.6% to 6.1%. This means that over roughly two decades, more young people were affected by these health conditions. The survey did not report on specific safety concerns, as it was not testing an intervention.
It is important to be careful with these results. This was an observational study based on survey data. It shows a clear trend of increasing rates, but it cannot tell us what specifically caused the increase. Many factors, like diet, physical activity, environment, and genetics, could play a role. Readers should see this as a broad, national snapshot highlighting a significant public health concern that needs attention, not as proof of what causes obesity in any individual.