Glutamate flavoring the neck, gradually radiating to both arms and the back, general weakness and palpitations... The syndrome is often abbreviated as CRS and also became known under the names Chinese food syndrome and monosodium glutamate symptom complex. Symptoms attributed to the Chinese restaurant syndrome have been determined to be false. Although many people believe that monosodium glutamate (MSG) is the cause of these symptoms, an association has never been demonstrated under rigorously controlled conditions, even in studies with people who were convinced that they were sensitive to the compound. Techniques used to adequately control for experimental bias include a placebo-controlled double-blinded
Street food in South Korea is sometimes referred to as a "moving restaurant." There are issues with street vendors. First, there are concerns with the hygiene of street food, although street vendors have tried address this issue. Secondly, street vendors do not usually pay tax; although after government promises of financial assistance the vendors made a commitment to pay taxes, for example in Noryangjin district. A third issue relates to selling by squatters, usually elderly people, in subway stations, where it is illegal. Street food in South Korea has become gentrified and diverse, much like other regional or national foods, for example: Chinese "Tanghuru", Kebob's,