According to a recent study, yes they have. NYC mayor Michael Bloomberg is known for his far-reaching approach to regulating food (and cigarette sales) in New York City, and the legislation has certainly been controversial. A study conducted by the New York City Department of Health and Mental Hygiene shows that on average diners are consuming 2.4 fewer grams of trans fats per lunch in 2009 than in 2007. The NYC trans fats ban was launched in 2008. 2.4 grams may not seem like much, but averaged across so many people eating so many meals, the DOH is claiming the NYC as a whole is now healthier due to the ban.
So what do you think? Do the ends justify the means?