This man, Dr. Woodrow Monte, is not well known. Yet he formulated an intriguing theory about Multiple Sclerosis. He was a food scientist and professor from Arizona, now retired, but a tireless opponent of aspartame. He wrote a book called "While Science Sleeps" (and has a website by the same name). His chapter (9) on Multiple Sclerosis is free to download and read on that site. His theory is gaining some traction and a few studies seem to support his argument. I offer it for background info (of course nothing is proven yet). There is a youtube video with Dr. Mercola where he kind of rambles and explains the theory. The written work is better. He's the only person I've heard who has answered some of the puzzling things about MS, like why do teachers get it so often? Why did it appear in the mid 1850s. Why was it a man's disease one hundred years ago, and now it's a woman's disease 3 to 1? Just thought I would throw it out there. I've emailed him and he is very kind to respond. google his website if interested.