A network of capillaries supply brain cells with nutrients. Tight seals in their walls keep blood toxins—and many beneficial drugs—out of the brain. From: Bridging the Blood-Brain Barrier: New Methods Improve the Odds of Getting Drugs to the Brain Cells That Need Them Ferber D PLoS Biology Vol. 5, No. 6, e169 doi:10.1371/journal.pbio.0050169 (Photo credit: Wikipedia) |
Any substance that crosses the blood-brain barrier, like MSG does, can potentially effect the brain and subsequently behavior. It overstimulates the nerves and at the same time overloads the chemicals that would naturally neutralize the stimulation effect. In layman's terms, it overloads the nervous system.
In the short run, the body can recover, but repeated overstimulation can lead to permanent alteration of the system. One particular part of the brain affected is the hypothalmus, which regulates mood and emotion. Overstimulation of that part of the brain can produce marked changes in a persons behaviors. These marked changes can occur sudenly.The reaction time to MSG ranges from suddenly to up to 48 hours. With MSG sensitive populations, such changes may show up as sudden rages or difficulty with sudden impulse control.
This substance often called a "flavor enhancer" is actually exciting brain cells into making them over-react to substances. In the over-reactive state, the person taking in MSG believes the food tastes better. The overexciting can result in headaches, heart palpitations, facial swelling, numbness, violent diarrhea, migraines, and other immediate reactions in some populations. Although some may pass off the reactions as of an allergic nature, the response of the body is of that to a toxin.
Some of the toxic reactions are delayed. The delayed reactions include increased obesity, brain lesions, stunted growth, reproductive disorders, learning disabilities, behavior disorders, and/or retinal degeneration. Such symptoms are serious and worthy of concern. These were some of the effects seen in the initial research on laboratory animals. Although some critics claim that the amount of MSG given to animals is not near the amount given to humans, when one considers the many avenues of MSG consumption, humans do ingest large quantities of MSG. Not everyone who uses MSG experiences these problems, although the estimate is ¼ of the population.
"MSG is a food additive that enhances flavors in food. It virtually has no flavor of its own, but neurologically causes people to experience a more intense flavor from the foods that they eat containing the substance. To millions of consumers, it means experiencing an adverse effect from the additive and possible adverse health effects in the future. To the food industry, it means increased profits, a simple way to balance taste in a product line and mask unwanted tastes, and to make otherwise unpalatable foods acceptable. In particular, MSG helps replace flavor lost by elimination of fat in many low-fat and no-fat foods."-Price-Pottenger Nutrition Foundation
MSG links with other disorders
Another area of concern are the neurological disorders that involve glutamaic acid. Research has not indicated a causative effect, yet since Glutamaic acid is highly involved in these disorders the likelihood that MSG can alter a person's brain chemistry and play a role in them presents a potential danger. These disorders include, conditions such as addictions, stroke, epilepsy, brain trauma, multiple sclerosis, AIDS dementia, schizophrenia, anxiety and depression. Glutamaic acid also plays a major role in the dementia related degenerative disorders such as Parkinson's disease, Alzheimer's disease, Huntington's disease, and amyotrophic lateral sclerosis. Given the seriousness of these disorders anything that increases the likelihood of their occurrence is a concern.
Some researchers have found links of MSG use with diabetes, migraines and headaches, autism, ADHD and Alzheimer's. Since these disorders are a concern with many people today, a closer examination of the role of MSG is needed. MSG is also used in some vaccines in order to keep them stabilized or 'live'.
Besides vaccines, MSG or Free Glutamaic Acid has also been used in the growth enhancer known as AuxiGro. This growth enhancer was approved for use in 1998.This growth enhancer has been used on yams, potatoes and onions to achieve larger size yields.
MSG by any other nameAlthough many foods and restaurants use MSG in their products, some do not. MSG is not always easy to identify.
There are 25+ other names for MSG. Some of these include:
Glutamate
Glutamic acid
Gelatin
Monosodium glutamate
Calcium caseinate
Textured protein
Monopotassium glutamate
Sodium caseinate
Yeast nutrient
Yeast extract
Yeast food
Autolyzed yeast
Hydrolyzed protein (any protein that is hydrolyzed)
Hydrolyzed corn gluten
Natrium glutamate (natrium is Latin/German for sodium)
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