The New York City
Board of Health was the first government authority
to approve a calorie-labeling regulation, in 2006. This
regulation requires chain restaurants’ menus to contain
details of the energy content of all menu items (45).
Dumanovsky and colleagues (46) assessed the impact of
8
(page number not for citation purpose)
adding calorie labeling to menu items by fast food
restaurants on the energy content of individual purchases
before and after full implementation of the mentioned
regulation. They found that several major chains reported
significant reductions after regulation; one in six
lunchtime customers used the calorie information provided,
and these customers made lower-calorie choices.