The Calorie Control Council has said that the study presented during a poster session at the International Stroke Conference claiming an association between diet soft drink consumption and increased risk of stroke and heart attack is critically flawed.
"The findings are so speculative and preliminary at this point that they should be considered with extreme caution. In fact, the study has not been peer reviewed by any independent scientists and has not been published in a scientific journal," stated Beth Hubrich, a registered dietitian with the Council.
The research, as well as the publicity regarding the study abstract, is drawing a growing body of criticism and skepticism from experts in the field of nutrition and science.
Pointing out some of the flaws in the study, Besser added, "They didn't look at how much salt they took in, they didn't look at what other foods they ate. Those things we know are associated with stroke and heart attack.
"They didn't even look at obesity over time. And so to conclude from this, that it's all from the diet soda, just makes no sense whatsoever," he said.
Walter Willett, chair of the Department of Nutrition at Harvard School of Public Health, echoed this criticism in comments presented on ABC News.
"It's important to keep in mind that his was really a preliminary report. It's not even published yet, and the study was fairly small. I think we have to interpret the findings about diet soda very carefully, in almost any first report, we shouldn't really change our behavior, because it could easily have occurred by chance," Willett said.