This study examined the energy, saturated fat, and sodium content of entrées at national chain restaurants subject to menu labeling regulations in King County, Washington, at six and 18 months after the implementation of the regulation. Researchers evaluated the nutrition content of entrées at 11 sit-down restaurants and 26 quick-serve chains for items that were on the menu at both time periods, and found a significant decrease in energy across all chains, sit-down restaurants, and quick-service restaurants, with the exception of pizza chains. Saturated fat and sodium levels also decreased across all chains and sit-down chains, although the change was not significant across all quick-service chains. While there was a decrease in the proportion of entrées that exceeded recommended levels for energy, saturated fat, and sodium, a majority still exceeded recommendations provided by the 2005 Dietary Guidelines for Americans.