What type of food component are excitotoxins commonly found in?

Excitotoxins are commonly found in processed foods, which often contain additives and flavor enhancers that can trigger excessive stimulation of the nervous system. One of the most well-known excitotoxins is monosodium glutamate (MSG), frequently used in a variety of processed foods to enhance flavor. Other food additives, such as aspartame and certain preservatives, can also exhibit excitotoxic properties.

In comparison, meats, dairy, and whole grains typically do not contain significant amounts of excitotoxins, as these foods are less likely to include the complex mix of additives found in processed items. Therefore, processed foods are considered the primary source of excitotoxins in the diet, making this the correct answer. Understanding this connection is important for individuals looking to manage their dietary intake of these compounds, particularly those who may be sensitive to excitotoxic effects.