Monosodium Glutamate
LimitAlso known as: MSG, E621
A flavor enhancer that adds savory umami taste, common in processed and restaurant foods.
Goby Ingredient ScoreModerate
54/100
Our rating
Limit
Generally permitted, but worth moderating in your overall diet. How we rate ingredients
What is it?
MSG is the sodium salt of glutamic acid, a naturally occurring amino acid. It is added to enhance the savory umami flavor of foods.
Is Monosodium Glutamate safe?
The FDA classifies MSG as 'generally recognized as safe.' Some people report short-term symptoms (the 'MSG symptom complex') but controlled studies have not consistently confirmed a cause.
Commonly Found In
- Chips and snacks
- Instant noodles
- Canned soups
- Fast food
- Frozen meals
Key Concerns
- !Adds sodium to the diet
- !Some report headaches or flushing
- !Often a marker of ultra-processed food
Related Ingredients
- AspartameA low-calorie artificial sweetener about 200x sweeter than sugar, used in diet sodas and sugar-free foods.
- MaltodextrinA highly processed carbohydrate used as a filler and thickener with a high glycemic index.
- Red 40A synthetic petroleum-derived red food dye linked to hyperactivity in sensitive children.
Frequently Asked Questions
Is MSG bad for you?
For most people MSG is safe in normal amounts, but it adds sodium and is common in ultra-processed foods.