FILE - FDA Commissioner Dr. Margaret A. Hamburg poses for a portrait before a newsmaker interview at the Associated Press in Washington, in this May 30, 2014 file photo. In a letter released Wednesday, Sept. 24, 2014 anti-addiction activists are calling for the Food and Drug Administration's top official to step down, saying the agency's policies have contributed to a national epidemic of prescription painkiller abuse.  (AP Photo/J. David Ake, File)

Anti-addiction groups call for new FDA chief

In a letter released Wednesday, more than a dozen groups ask the Obama administration’s top health official to replace FDA Commissioner Dr. Margaret Hamburg.

Coke, Pepsi pledge to reduce calorie consumption

Coke, Pepsi and Dr Pepper have agreed to reduce the calories in beverages by 20 percent over the next decade by more aggressively marketing smaller sizes, bottled water and diet drinks.