UNICEF warns child obesity surpasses underweight population worldwide for the first time

11 September 2025

© UNICEF/Florence Goupil

For the first time in history, obesity surpasses undernutrition as the most common form of malnutrition in young people, a report from UNICEF found. One in 10 children aged 5 to 19 – 188 million worldwide – are now living with obesity. That’s three times more than in 2000. Obesity now affects every part of the world with only the exception of sub-Saharan Africa and South Asia.

Obesity is a severe form of overweight and leads to a higher risk of developing insulin resistance and high blood pressure, as well as life-threatening diseases later in life, including type-2 diabetes, cardiovascular disease, and certain cancers.

The report notably points to ultra-processed and fast foods, that are high in sugar, unhealthy fats and additives. These have flooded the supermarkets and there are aggressive marketing tactics in place, influencing children into buying these products.

Countries such as Mexico have already implemented measures. They have banned the sale of sugary drinks and UPFs in public schools.

UNICEF is urging governments worldwide to follow suit with relevant policies and reforms.

Nutritious and affordable food is essential to every child to support their growth and development.