In the article that prompted this thread, the author mentions acesulfame potassium, or ACE-K, as a safe artificial sweetener. Before you accept that statement at face value, I would urge you to read the report, The Dangers of Acesulfame Potassium, published by the Glycemic Research Institute of Washington DC. In summary, the report cites the sloppy research and hurried approval process behind ACE-K, quoting some top-notch researchers. To buy this report, visit the GRI's bonus report site.

I don't always agree with the GRI's findings (they are against high-protein dietary plans), but in this case, their research looks solid.

Disclaimer: I do not work for the GRI or any of its affiliates.