Diet cokes
Niall Kennedy

Bad news for everybody who drinks diet sodas instead of the sugary varieties to help stay healthy.

In an opinion piece [PDF] in the journal Trends in Endocrinology and Metabolism, Purdue University professor Susan Swithers writes that drinks containing such chemicals as aspartame, sucralose, and saccharin have been found to contribute to excessive weight gain, metabolic syndrome, type 2 diabetes, and cardiovascular disease. Her piece summarizes studies on the health effects of artificial sweeteners:

Recent data from humans and rodent models have provided little support for ASB [artificially sweetened beverages] in promoting weight loss or preventing negative health outcomes such as [type 2 diabetes], metabolic syndrome, and cardiovascular events. Instead, a number of studies suggest people who regularly consume ASB are at increased risk compared with those that do not.