One study compared diet sodas to water as a strategy for weight loss—and found that the sodas were better. Another reviewed studies in which subjects switched from regular to diet soda to see if they lost weight. A third examined the methodology used in previous research that linked soda consumption to diabetes.
All came to conclusions favorable to the marketing desires of the Coca-Cola Company. And all were paid for by the company—or another organization closely allied with and financially supported by Coke.