It was even once considered a toxic ingredient.
“Even so, MSG continues to be a controversial ingredient.
It is even banned in some countries.
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It gives food a savory and rich flavor (umami).
Fortunately, most MSG-enriched foods only contain about 0.5 g of MSG per serving, so reactions are unlikely.
Some people may also be sensitive to MSG.
Here is what the research has to say about MSG’s adverse effects.
Effect on Energy Intake
Energy intake refers to the calorie or energy content of food.
MSG has been linked to disrupted energy intake balance.
One study revealed that this effect was related to disturbances in the leptin-mediatedhypothalamussignaling cascade.
Leptin is responsible for signaling to the body that you are full.
When there is a leptin disturbance, you may increase your caloric intake.
Newer studies dispute leptin-MSG studies.
These contradictory study results are believed to be linked to meal nutritional content.
For example, if you eat an MSG-enriched meal that contains meat, the increased protein may cause fullness.
More research is needed to confirm the effects of MSG on energy intake.
Studies on obesity have been contradictory.
Symptoms of MSC may include:
Who Is at Risk of an Adverse Reaction?
For most people, MSG is just as safe as other seasonings and flavorings you add to your food.
Are You Sensitive to MSG, or Is It Something Else?
Highly processed or fried foods may also cause similar effects.
For instance, MSG tends to be found in highly processed convenience foods.
However, seeing MSG on an ingredient list isn’t a reason to avoid that food.
You should look at the other ingredients in that food and seek out healthier alternatives.
Common Foods With MSG
Glutamate is naturally present in many different foods, includinghigh-protein foods.
MSG is added to some foods during processing.
It is also naturally found in some foods, including tomatoes, parmesan cheese, and mushrooms.
It gives food a savory and rich flavor.
MSG has gotten a bad reputation and is believed to be toxic.
A small percentage of the general public may be sensitive to MSG.
This includes processed foods, fast foods, and premade and packaged foods.
Washington (DC): National Academies Press (US); 2023.
2014;46(9):2075-2087. doi:10.1007/s00726-014-1771-6
Medline Plus.MSG symptom complex.
