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Children & teens

Growing up in a heavier world

In 1980, 1.1% of 5–19-year-olds lived with obesity. In 2024 it was 8.2% — about 166 million young people.

8.2%

of 5–19-year-olds live with obesity (2024)

Source: WHO

19.8%

are overweight or have obesity (2024)

Source: WHO

9.6%

are too thin — “thinness” (2024)

Malnutrition goes both ways.

Source: WHO

166 million

young people with obesity (estimated number)

WHO rate × UN population

Source: WHO; UN WPP 2024

Boys and girls

World: 5–19-year-olds with obesity, 1980–2024

What this meansBoys: 1.2% → 9.4%. Girls: 1.0% → 6.9%.

0%5%10%15%20%19801990200020102020Boys 9.4%Girls 6.9%
  • Boys
  • Girls

Obesity = BMI-for-age more than 2 standard deviations above the WHO growth reference median. Shaded bands = 95% uncertainty.

Source: WHO Global Health Observatory.

Where children are most affected

Highest: ages 5–19 with obesity (2024)

What this meansNiue is highest at 38.6%.

Under-5s who are overweight (latest survey)

What this meansHighest in the latest available data: Australia (22.0%, 2017).

Weight-for-height more than 2 SD above the WHO standard. Surveys happen in different years in different countries; only data from 2015 onward is shown.

Source: World Bank, World Development Indicators.

What experts say

160 million

children and teens aged 5–19 were living with obesity in 2022, up from 31 million in 1990.
Source: World Health Organization, Obesity and overweight (fact sheet) (8 December 2025)

35 million

children under the age of 5 were overweight in 2024.
Source: World Health Organization, Obesity and overweight (fact sheet) (8 December 2025)

Early risk

Overweight in childhood is linked to a greater risk, and earlier onset, of diseases like type 2 diabetes and heart disease.
Source: World Health Organization, Obesity and overweight (fact sheet) (8 December 2025)

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