"Umami: The 5th Taste"

http://blog.wired.com/wiredscience/2008/12/umamichemistry.html

When we were in grade school, many of us learned that there were four basic tastes: sweet, sour, salty and bitter. Now there's a new taste to learn and it's called umami (pronounced "oo-mommy").
What exactly is the umami taste? Well, there's no English word that's synonymous with umami, however it's most often described as a "savory" or "meaty" taste. The key's taste of this umami is "glutamate" that is also known as nature's flavor enhancer. What capture me most in this article is that Monosodium Glutamate, often referred to as "MSG" also provide Umami taste in the food. MSG to me is not something good. I would avoid consuming it too much. However reading the article acknowledge me about the new 5th taste.