(Reuters) – The U.S. Food and Drug Administration said it would extend the deadline for chain restaurants to disclose calorie counts on menus by a year to the end of 2016. The FDA set a national standard for restaurant chains with 20 or more outlets late in 2014, to make people more aware of the risks of obesity posed by fatty and sugary foods as part of the Affordable Care Act. The calorie rule covers meals at sit-down restaurants, take-out food, bakery items, ice cream from an ice-cream store and pizza, which will be labeled by the slice and whole pie.