date:Jul 18, 2012
The cross-sectional study from the New York City Department of Health and Mental Hygiene included purchase receipts matched to available nutritional information and surveys of adult restaurant customers at lunchtime. The researchers randomly selected 168 New York City restaurants from 11 fast-food chains.
The final samples included 6,969 purchases in 2007, or before the trans fat restrictions were in place, and 7,885 purchases in 2009, or after the restrictions were in place.
Mean saturated fa