Australian researchers say the best way to reduce excess tummy fat in children is through a mix of healthy eating and regular physical activity.

Combining diet and exercise was significantly more effective at reducing central obesity than either approach alone, according to a study released on Saturday, which analysed data from 34 clinical trials involving over 8,100 children aged 5 to 18.

Central obesity, which refers to fat stored around the stomach and internal organs, is considered more dangerous than general obesity due to its link to heart disease, diabetes, and other long-term health issues, said the researchers from Charles Sturt University and Western Sydney University.

Standalone strategies like diet-only, exercise-only, supplements, or medication didn't show significant results in reducing waist size, said the study published in JAMA Network Open.

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The most successful programs included Mediterranean-style or low-fat diets paired with up to 150 minutes of physical activity per week, lasting 6 to 9 months.

Experts say the findings highlight the urgent need for action as global rates of childhood obesity continue to rise, affecting an estimated 94 million girls and 65 million boys worldwide in 2022.

The researchers stress that coordinated efforts from governments, schools, and health organizations are needed to address the issue, and the results support global goals to end malnutrition and cut early deaths from noncommunicable diseases by 2030.