"The American Medical Association has confirmed that HFCS is no more likely to contribute to obesity than table sugar or other full-calorie sweeteners," the post continued. "Please be assured that Coca-Cola brand soft drinks do not contain any harmful substances."

The debate over whether Coca-Cola should use high-fructose corn syrup or cane sugar in its signature cola obscures an important fact: Consumers are increasingly looking for Coke with no sugar at all.