The dangers of excessive eating MSG
The main component of MSG is monosodium glutamate, MSG is a good assistant of seasoning, it is in the digestive process in the decomposition of glutamic acid, the latter in the brain by the enzyme catalysis can be converted into an inhibitory neurotransmitter. When excessive intake of MSG, this inhibitory neurotransmitter will make a variety of neurological function in the body in an inhibitory state, and thus give rise to dizziness, headache, lethargy, muscle cramps, and a series of symptoms; will appear anxious, agitated and confused; part of the constitution of the more sensitive people may even feel the bone pain, muscle weakness. In addition, too much of the inhibitory neurotransmitter to inhibit the bodys secretion of hypothalamic thyrotropin-releasing hormone, hinder bone development, the impact on children is particularly significant.

When too much MSG, more than the bodys metabolic capacity, but also lead to increased glutamate levels in the blood, limiting the use of the body of essential minerals such as calcium, magnesium, copper. In particular, the glutamic acid can combine with the zinc in the blood, glutamic acid generated can not be used zinc is excreted, resulting in human zinc deficiency. Zinc is important nutrients for infants and young children physical and mental development. Therefore, infants and lactating mothers should be fasting or deprivation of MSG. In addition, researchers believe that long-term excessive consumption of MSG may lead to retinal thinning, decreased vision, even blindness.
The heart operation for a large number of glutamic acid slowed down, so that the cardiac contraction amplitude increases, the coronary vasculature by compression. Very large number of glutamate will make the heart stop their activities.

N kinds of people unfit for human consumption of MSG

MSG eat more, and often feel thirsty, this is because of the MSG contains sodium, excessive intake can lead to hypertension. People over the age of 60 are particularly sensitive to sodium intake, the elderly and people suffering from high blood pressure, kidney disease, edema and other diseases in particular, should eat MSG.
Zinc is important nutrients for infants and young children physical and mental development. Therefore, pregnant women, infants and young children and lactating mothers should be fasting or deprivation of MSG.