Often dubbed as the chief cause of "Chinese restaurant syndrome",
monosodium glutamate (also known as MSG) has received a bad rap for an array of
symptoms that arise once consumed. Adverse reactions include headaches, nausea,
sweating, weakness and shortness of breath. Symptoms like these are usually
mild, although there are cases where more severe reactions have been observed.
What is MSG?
Monosodium glutamate is a flavor enhancer used in cooking,
and often appears in Chinese and Japanese restaurant food (hence "Chinese restaurant
syndrome"). This enhancer was first made using an isolated glutamate from a
broth made with dried Konbu kelp. MSG is now made by a fermenting process using
sugar beets, sugar cane, starch, or molasses.
Glutamate is naturally found in many protein-containing
foods such as milk, cheese, meat, tomatoes, mushrooms, and peas. Studies have
found that the human body treats glutamate added to foods, such as MSG, the same as
natural glutamate. MSG only contains one-third of the amount of sodium as table
salt and only needs to be used in small amounts.
The Controversy
Some people do have adverse reactions to foods containing
MSG, but they are generally considered short-term. MSG is not considered an
allergen, although it is generally acknowledged that some people may be
sensitive to this food additive. There have not been any studies than linked
long-term problems with MSG, although some believe that it is linked to
obesity.
Studies
The FDA classifies MSG as a "generally recognized as safe"
substance. The FDA has supported extensive reviews on the safety of MSG since
1970. Studies have found that large
doses of MSG without food may be the cause of more symptoms. When given to
people who believe they react undesirably to MSG, the response was low when MSG
was given with food. It appears that some 'reactions' to this additive may be
more psychologically-based than physically-based.
What do you think?
Is monosodium glutamate as dangerous as Campbell's
wants you to believe? Or is MSG unjustly blamed for extraneous health problems?
Resources:
http://www.foodsafety.gov/~lrd/msg.html
http://www.mayoclinic.com/health/monosodium-glutamate/AN01251
http://en.wikipedia.org/wiki/Monosodium_glutamate
http://chinesefood.about.com/od/healthconcerns/p/MSG.htm
http://jn.nutrition.org/cgi/content/full/130/4/1058S
http://www.ific.org/publications/brochures/msgbroch.cfm
http://www.brandweek.com/bw/content_display/news-and-features/packaged-goods/e3ic06d5fa4f7073585fc5600216b9bb78d
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Good Answers: