[1] In recent years, many restaurants have begun posting nutrition information as a result of both customer demand and menu-labeling laws.
[2] The Patient Protection and Affordable Care Act, signed into law March 23, 2010, includes a provision that creates a national, uniform nutrition-disclosure standard for food service establishments.
[citation needed] The nutrition-disclosure provision requires chain restaurants, similar retail food establishments and vending machines with 20 or more locations to provide specific nutrition labeling information.
[3] Recently many state and local menu-labeling laws have been passed requiring restaurants to post nutrition information on menus and menu boards, or have it readily available upon customer request.
Some nutritionally-important values such as chloride, calcium, phosphorus, zinc, and copper may also be reported.