According to
the first nationwide study on the effects of banning junk food sales at schools,
recently published in the journal Pediatrics, there
is a correlation between such bans and declining weight gain in children, Good
Education reports.
Researchers studied
data from 6,300 students in 40 states, measuring each student's weight and
height in 2004, upon entering middle school, and again in 2007. They also
looked at which children lived in states with anti-junk food laws. Children
that lived in states with strong laws banning junk food sales at school gained
less weight between fifth and eighth grades than those living in states with
weak or nonexistent junk food laws. Furthermore, overweight and obese children
were more likely to reach a healthy weight by eighth grade if they lived in
anti-junk food states.
According to
Good, the differences were not terribly dramatic. They also did not discuss how
or if such laws affected younger children or older teens or whether there were
other variables that may have been in play. Some states, for example, have much
higher obesity rates than others. Since obesity tends to be higher in lower
income communities, the results of the study might have been skewed or
influenced by the poverty differential between states.
