Researchers raised the alarm about an obesity explosion among children in rural China as a Western-style diet high in sugar and carbohydrates starts taking its toll. A 29-year survey of kids in China's eastern Shandong province revealed that 17 percent of boys younger than 19 were obese in 2014, and nine percent of girls - up from under one percent for both genders in 1985.
"This is extremely worrying," the European Society of Cardiology's Joep Perk said of the study published in the European Journal of Preventive Cardiology. "It is the worst explosion of childhood and adolescent obesity that I have ever seen."
The data comes from six government surveys of some 28,000 rural school children (aged 7-18) in Shandong. The percentage of overweight boys had grown from 0.7 percent to 16.4 percent, and girls from 1.5 percent to nearly 14 percent, it found. The study used different measures of Body Mass Index (BMI) for overweight and obesity than the World Health Organisation (WHO) standard. BMI is a ratio of weight-to-height squared.
For the UN's health body, a BMI of 25-29.9 is classified as overweight, and from 30 upwards obese. The study authors used a stricter cut-off of 24-27.9 for overweight, and 28 and above for obese.
This means it would be difficult to compare the numbers to other countries, but does not invalidate the fattening trend observed within China itself, said Perk.
"China has experienced rapid socioeconomic and nutritional changes in the past 30 years," study co-author Ying-Xiu Zhang of the Shandong Centre for Disease Control and Prevention said in a statement.
"In China today, people eat more and are less physically active than they were in the past. The traditional Chinese diet has shifted towards one that is high in fat and calories and low in fibre."
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