Surprising Causes of Childhood Overweight and Obesity Parents Should Know

Childhood overweight and obesity have become an alarming public health issue, extending beyond major cities to rural areas. From a modern nutritional perspective, this is no longer a sign of prosperity, but a warning of an imbalance between energy intake and expenditure.

Data from the World Health Organization (WHO) indicates that by 2022, over 390 million children and adolescents aged 5-19 worldwide were overweight. In Vietnam, UNICEF reports indicate this rate rose from 8.5% in 2010 to 19% in 2020. The changing food environment is a key driver; children now have easy access to fast food, sugary drinks, and ultra-processed foods that are high in sugar and salt but poor in essential nutrients.

Beyond nutrition, habits such as consuming sugary beverages, lack of physical activity, and disrupted daily rhythms—especially sleep deprivation—are unexpected contributing factors. When screen time replaces physical activity, the risk of obesity increases significantly.

Weight management for children requires a scientific approach; extreme measures like strict fasting should be avoided. Instead, parents should monitor BMI, establish healthy lifestyle habits for the entire family, and follow public health guidelines consistent with current national directives on community health care.