随手一搜，反面不少，能少吃还是少吃吧。

MSG Research
All independent research has proven that MSG kills neurons and thus has an adverse effect on health in a variety of animals and in humans. This research has also shown that humans absorb MSG more rapidly and completely than other species and that a child's brain is four times more sensitive to MSG damage than an adult.

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Health dangers associated with MSG
Independent research has identified the following adverse reactions to MSG
Headaches/migraines
Lethargy
Sleepiness
Anxiety
Panic attacks
Mental confusion/disorientation
Insomnia
Nausea/vomiting
Diarrhea
Stomach cramps
Irritable bowel syndrome
Bloating
Asthma attacks
Shortness of breath
Chest pain or tightness
Runny nose/sneezing
Extreme dryness of the mouth
Hives or rash
Palpitations
Flushing
Mouth lesions
MSG has been shown to cause lesions on the brain, especially in children. These lesions cause cognitive, endocrinological and emotional abnormalities. In children excess glutamate affects the growth cones on neurons. Growth cones are vital in laying down chemical pathways in the brain to enable the brain to operate effectively. Studies show that rats who had been fed MSG from birth could not escape mazes or discriminate between stimuli as well as non MSG fed rats. The implications for human children are that MSG could seriously affect their cognitive skills and cause learning difficulties.

Many Medical Practitioners recommend the following people avoid MSG;
infants
children
pregnant women
women of childbearing age
obese people (animals given MSG became overweight)
people with hypoglycemia (removing excess glutamate uses up more glucose)
people with low brain energy (excess glutamate prevents glucose getting to the brain)
people with learning difficulties (glutamate affects the growth cones in neurons)
migraine or headache sufferers
asthma or allergy sufferers
sufferers of a brain disease such as Alzheimer's
sufferers of tinnitus or Meniere's disease
sufferers of most chronic illnesses
people who are health conscious.
What is MSG Sensitivity?
MSG sensitivity has been described as a powerful drug reaction. Highly sensitive people cannot tolerate even the naturally occurring amounts of glutamate such as can be found in tomatoes and mushrooms without having an immediate reaction. These people should obviously take all steps to avoid ingesting MSG. The MSG industry believes that the only people who suffer adverse reactions to MSG are people with MSG Sensitivity.

Diagnosis of MSG Sensitivity can be difficult because:
None of the symptoms of MSG toxicity, as listed above, are caused exclusively by MSG. They can be caused by other physical conditions or food additives and be exacerbated by the MSG.
Reactions to MSG can take place up to 72 hours after ingestion.
Reactions are related to the amount of MSG ingested; some people can eat MSG safely in one meal a week, or a day, but if they eat two meals a day they will react
It can be hard to pinpoint MSG reactions due to MSG often being hidden in foods.
Scientists have proven that everyone does react to MSG ?it all depends on the dose of MSG given. People who do not suffer an immediate or acute reaction to the substance will, scientists believe, suffer brain cell damage which can lead to long-term health problems as detailed above.



MSG section author: Dawn Copeman
Last Updated: 6/27/2005