FILE - This Monday, Oct. 15, 2012 file photo shows two cans of Caffeine Free Diet Coke on ice in Surfside, Fla. During a conference call with analysts Tuesday, Oct. 15, 2013, a Coca-Cola executive

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FILE - This Monday, Oct. 15, 2012 file photo shows two cans of Caffeine Free Diet Coke on ice in Surfside, Fla. During a conference call with analysts Tuesday, Oct. 15, 2013, a Coca-Cola executive noted that Diet Coke was "under a bit of pressure" because of people's concerns over its ingredients, alluding to the growing wariness of artificial sweeteners in recent years. Soda has been under fire from health advocates for several years now, and Americans have been cutting back on sugary fizz for some time. But in a somewhat newer development, diet sodas are falling at a faster rate than regular sodas, according to Beverage Digest, an industry tracker. (AP Photo/Wilfredo Lee, File) less 

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Associated Press
Wed, Oct 16, 2013 12:56 AM EDT