What is the frequency of severe symptoms caused by MSG?

The frequency of severe symptoms caused by monosodium glutamate (MSG) is considered rare, particularly in relation to food additives. While some individuals may report sensitivity to MSG, scientific research has demonstrated that the majority of the population can consume it without experiencing adverse effects. This aligns with the understanding that reactions to food additives are not common among the general population. The term "rare" accurately reflects the limited number of documented cases of severe symptoms due to MSG, supporting the designation of MSG as a safe ingredient for most consumers. The use of "additives" in the context suggests that severe reactions are even less common when considering the broad array of substances in processed foods.