New cases of obesity are rising fastest in younger adults in England, a study suggests.

Rates of new diagnoses for people in their 30s were nearly 20% higher in 2024-25 than they were in 2019-20, according to the study published in The Lancet. For people in their 20s, new cases jumped by 16%.

These increases were higher than in older age groups, though the most common ages for diagnosis remained the 40s and 50s.

Experts said the trend towards earlier diagnosis was worrying given obesity increases the risk of illnesses such as diabetes, heart disease and cancer.

The team also identified significant differences between different ethnic groups – earlier onset of obesity was more common in non-white people – while the areas with the highest levels of deprivation also saw steeper rises.

About the Author: Erin Dearlove

Erin holds an MA in Magazine Journalism and joined NH Publishing in 2024. She has a strong interest in health and dietetics and currently works as Website Content Coordinator for Network Health Dietitians.

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New cases of obesity are rising fastest in younger adults in England, a study suggests.

Rates of new diagnoses for people in their 30s were nearly 20% higher in 2024-25 than they were in 2019-20, according to the study published in The Lancet. For people in their 20s, new cases jumped by 16%.

These increases were higher than in older age groups, though the most common ages for diagnosis remained the 40s and 50s.

Experts said the trend towards earlier diagnosis was worrying given obesity increases the risk of illnesses such as diabetes, heart disease and cancer.

The team also identified significant differences between different ethnic groups – earlier onset of obesity was more common in non-white people – while the areas with the highest levels of deprivation also saw steeper rises.

About the Author: Erin Dearlove

Erin holds an MA in Magazine Journalism and joined NH Publishing in 2024. She has a strong interest in health and dietetics and currently works as Website Content Coordinator for Network Health Dietitians.

Leave A Comment