In a clearly-worded critique of a paper published by Fowler et al in the Journal of the American Geriatrics Society, the Science Media Centre in London has pointed out that:

"It would be worrying if the take-home message for dieters would be that you may as well have the additional 200 Calories or so a day from sugar-sweetened drinks instead of choosing zero calorie drinks."

The full text of the critique by the Science Media Centre is available here.