Here is a lecture by Dr. Russell Blaylock who gives a talk on excitotoxins. Excitotoxins (Monosodium Glutamate, Aspartame, etc) are the ingredients which dramatically enhance the flavor of food. Eating too many foods with these excitotoxins or eating any one food
loaded with excitotoxins can cause a variety health problems.
The lecture is a whopping hour long, but will have a deeper understanding why it is important for even those NOT affected by MSG to stop eating MSG - Alzheimer's disease, diabetes.... No Joke!!!
I have embeded the video from an external site. The lecture at the site is titled:
It's in all the food - MSG, Aspartame Dr. Russell Blaylock is the author of
Excitotoxins: The Taste That Kills along with other revered books.
Source: http://theinfovault.net/vault/streamingarchives_files/itsallinthefoodstreaming.html