"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."

For years, a persistent rumor has floated around soda enthusiasts: Mexican Coke, with its cane sugar, is somehow a healthier alternative to the U.S. version, sweetened with high-fructose corn syrup (HFCS).