Young children, especially infants, are now more likely to be overweight than two decades ago, according to a U.S. study.
"The obesity epidemic has spared no age group, even our youngest children," said Dr. Matthew Gillman, the senior author of the study and a professor at Harvard Medical School.
Over 22 years in Massachusetts, the number of overweight infants increased by 74 per cent, the researchers reported Wednesday.
The results are important for public health because studies show faster weight gain in the first few months after birth is associated with obesity later in life.
"These results show that efforts to prevent obesity must start at the earliest stages of human development, even before birth," Gillman said.
These efforts, he said, should include avoiding smoking and excessive weight gain during pregnancy, preventing gestational diabetes, and promoting breastfeeding.
Average weight gain during pregnancy should be between 25 to 30 pounds, according to Health Canada.
The American researchers collected height and weight measurements from the electronic medical records of more than 120,000 children younger than six years old in the state.
Between 1980 and 2001, the prevalence of overweight children increased from 6.3 per cent to 10 per cent, while the proportion at risk of becoming overweight grew from 11.1 per cent to 14.3 per cent overall.
The study appears in the July issue of the journal Obesity.
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