Many people cannot tolerate artificial sweeteners. That being said, the link between artificial sweeteners and MS and/or Lupus is entirely bogus. This false claim has been rolling around the internet for a number of years, and has unfortunately caused
some people to panic. I have used artificial sweeteners for years, so I am admittedly biased, but the researcher in me investigated the claims as well. The following website gives you a brief history on this rumor; there are probably other sources out there as well.
Be careful about the information you encounter, especially over the internet. Many false claims that have proven harmful to people have been needlessly perpetuated over the internet. If I'm suspicious about some claim, I usually find it on an urbans legend website somewhere, as was the case with this one.
Current dx: Rheumatoid Arthritis
Suspected dx: UCTD/Early Lupus
Current Meds: Enbrel, Plaquenil, Aciphex, Ultracet, Zyrtec, Allavert-D, Zantac, Tylenol PM
Past Meds: Relafen, Vioxx, Mobic, Voltaren, Sulfasalazine, Entocort, Prednisone, Humira, Reglan