New federal data show obesity among U.S. youth has reached its highest level on record, while adult rates may be beginning to level off after decades of steady increases, according to reports from the Centers for Disease Control and Prevention.
Researchers analyzing national health survey data from 2021 to 2023 found that about 21% of children and teens ages 2–19 are living with obesity — roughly 1 in 5 — with 7% classified as having severe obesity. The figures mark a sharp rise compared with the 1970s, when childhood obesity affected about 5% of young people.
Among adults, 40.3% were classified as obese, slightly below the record 42.4% reported in 2017–2018, suggesting the rapid growth seen in prior decades may be slowing. Experts say factors such as public health awareness and newer weight-loss medications, including GLP-1 treatments, could be contributing.
Health specialists caution it’s too early to confirm a long-term decline in adult obesity and warn the increase among youth is particularly concerning. Adolescents ages 12–19 showed some of the highest rates, with nearly 23% affected, highlighting the need for earlier intervention through nutrition, lifestyle changes, and — in some cases — medical treatment.
Researchers emphasize that reversing childhood obesity trends will likely require sustained prevention efforts, family-based lifestyle support, and broader access to care.
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