“It’s a small step in the right direction,” said Philip Leonard, a health economist at the University of New Brunswick.
“Combined with other policies of this type, you can hope to see real difference over time.”
Leonard looked at the body mass index (BMI) of 153,000 Canadians, aged 12 to 25, during an eight-year period. Within that sample, compiled from the annual Canadian Community Health Survey, more than 22,000 youths had been banned from buying junk food at school for at least one year.
As a result, the students banned from making junk food purchases at school for five or more years were, on average, about two pounds lighter than students who did not face a ban.