“MSG is bad for you and causes 'Chinese Restaurant Syndrome.'”

The idea that monosodium glutamate, or MSG, is harmful and causes a condition known as "Chinese Restaurant Syndrome" originated from a letter published in the New England Journal of Medicine in 1968. A physician described experiencing symptoms like numbness, weakness, and heart palpitations after eating at Chinese restaurants, speculating that MSG might be the cause. This single anecdotal account, despite being just a letter and not a scientific study, gained widespread attention and unfortunately led to decades of misunderstanding and stigma surrounding MSG and Asian cuisine.

Despite the initial alarm, extensive scientific and regulatory reviews have consistently found MSG to be safe for consumption for most people. Organizations like the U.S. Food and Drug Administration (FDA) have classified MSG as "generally recognized as safe" (GRAS). Double-blind, placebo-controlled studies, considered the gold standard in research, have failed to consistently demonstrate a link between MSG and the reported symptoms of "Chinese Restaurant Syndrome." The human body metabolizes glutamate from MSG in the same way it metabolizes glutamate naturally present in many foods like tomatoes and cheese.

The persistence of this myth can be attributed to several factors. The initial sensationalized media coverage, coupled with poorly designed early studies that used unrealistic dosages of MSG, fueled public concern. Furthermore, some experts suggest that the fear of MSG was unfortunately intertwined with xenophobia and bias against Asian cultures, making it easier for people to blame an "exotic" ingredient rather than other factors like overeating or pre-existing sensitivities. While a small percentage of individuals may report mild, temporary reactions to MSG, similar to sensitivities to other food components, these are not consistently reproducible in controlled settings for the vast majority of people.