The United States, the world's largest economy, accounts for approximately 25 percent of Nominal world GDP, and the seven largest economies (amalgamating the European Union economies as one) account for 75 percent of the total.
MayoClinic.com states that some people report feeling flushed or hot in the face or neck after eating MSG. There may also be sweating, itching, and numbness, tingling or a burning sensation in the face, neck and chest. MSG reactions are generally mild. However, some people experience swelling or tingling around the mouth, lips and tongue, which can result in complications such as trouble breathing; this requires immediate medical attention.
Monosodium glutamate (MSG) is a brain stimulant that was originally extracted from seaweed in 1908. Most commonly associated with restaurant Chinese food, it is used pervasively as a flavor enhancer in fast foods, frozen meals, canned soups, and potato chips. This additive can be extremely harmful: MSG side effects range from obesity to liver damage.