Many people drink diet sodas because they are calorie-free and theoretically don’t contribute to obesity. However, many recent studies found a link between diet soda consumption and metabolic problems such as insulin resistance and diabetes.
A study from the Duke University Stroke Center found that people who drank a diet soda every day increased their risk of stroke and heart attack by 61 perfect. The researchers cautioned that their findings may not be “cause and effect,” and couldn’t explain the mechanism behind the results. It could be that people who drink diet sodas lead unhealthy lifestyles. However, the results of this study are consistent with other recent investigations showing that drinking diet sodas may have serious health consequences. (Paper presented at International Stroke Conference, February 9, 2011)