New nutrition labelling: does it improve the consumer's behavior?

While eating healthy and preventing obesity lies under personal responsibilities. In 2008, New York city was the first to apply the nutrition labeling legislation. By labeling, the government decided to play a bigger role in the population health through helping and encouraging the consumer to make healthier choices. At the time, the legislation was limited to the restaurants. Generally speaking, the fast food outlets become obliged to visibly expose the calories on their menus especially for their usual available meals as part of the new consumer protection scheme. Nowadays, the food industry is seriously locked between a number of regulations developed to improve public health. Do this kind of regulation change the customer's habits? do they encourage healthier consumption? do they have any impacts on manufacturers and retailers revenues?