Introduction to E622
Have you ever turned over a food package and noticed a mysterious code starting with the letter “E”? You’re not alone. One of those codes is e622, and it often raises eyebrows. What is it? Is it safe? Should you avoid it?
In today’s world, food labels can feel like a science class. Still, understanding what goes into your meals is important. Think of food additives like backstage crew in a theater—they’re not the stars, but they help the performance run smoothly.
This article breaks down everything about e622 in simple language. We’ll explore how it’s made, why it’s used, whether it’s safe, and what science really says.
What Exactly Is E622?
Chemical Composition
E622 refers to monopotassium glutamate, a compound formed by combining glutamic acid with potassium. Glutamic acid is a naturally occurring amino acid found in many foods like tomatoes, cheese, and mushrooms.
When glutamic acid binds with potassium, it forms monopotassium glutamate. This ingredient is commonly used to boost and deepen the natural taste of foods.
Common Name and Labeling
On ingredient lists, you may see:
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E622
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Monopotassium glutamate
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Potassium glutamate
It belongs to the same family as monosodium glutamate (MSG), but instead of sodium, it contains potassium.
How Is E622 Made?
Natural Sources
Glutamic acid occurs naturally in protein-rich foods. Traditionally, fermentation processes—similar to how yogurt or soy sauce is made—are used to produce glutamic acid.
Microorganisms ferment sugars or starches. This process creates glutamic acid, which is then combined with potassium to form the final compound.
Industrial Production
Modern production uses controlled fermentation tanks. After fermentation:
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The glutamic acid is extracted.
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It is purified.
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Potassium compounds are added.
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The product is dried into a crystalline powder.
This method ensures consistency and safety.
Why Is E622 Used in Food?

Flavor Enhancement
The main purpose of e622 is to enhance flavor. It delivers what is known as umami, often described as a savory or meaty taste.
Umami is sometimes called the “fifth taste” after sweet, salty, sour, and bitter. Foods rich in umami feel satisfying and full-bodied.
Adding e622 doesn’t create a new flavor. Instead, it boosts existing flavors—like turning up the volume on your favorite song.
Preservation Role
While not primarily a preservative, flavor enhancers can indirectly support shelf life by maintaining taste quality in processed foods.
Foods That Contain E622
You might find e622 in:
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Instant noodles
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Soups
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Processed meats
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Snack foods
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Sauces
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Ready meals
It is especially common in savory products.
Because it contains potassium instead of sodium, it’s sometimes used in lower-sodium formulations.
Is E622 Safe to Consume?
Regulatory Approval
E622 has been evaluated by food safety authorities. In Europe, additives beginning with “E” are approved by the European Food Safety Authority (EFSA). You can explore more at the official EFSA website: https://www.efsa.europa.eu/
Globally, regulatory bodies assess food additives before approving them.
Scientific Studies
Studies show that glutamate salts are generally safe for the majority of people when consumed within recommended limits.
Like its sodium counterpart, it has been researched extensively. Scientific consensus suggests moderate consumption poses no major health risks for healthy individuals.
Health Benefits and Concerns
Potential Benefits
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Enhances food satisfaction
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May help reduce overall salt intake
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Contains potassium, which supports muscle and nerve function
Possible Concerns
Some individuals report sensitivity to glutamate compounds. Symptoms may include:
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Headache
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Flushing
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Sweating
However, scientific reviews have found limited evidence linking moderate intake to severe health problems.
Balance is key. As with any additive, moderation matters.
E622 and Dietary Preferences

Vegetarian and Vegan Diets
Since e622 is produced through fermentation, it is generally suitable for vegetarians and vegans.
Halal and Kosher Considerations
Certification depends on the manufacturing process. Many products containing e622 carry halal or kosher approval, but it’s always wise to check packaging.
Comparing E622 with Similar Additives
E622 belongs to a group of flavor enhancers:
| Code | Name | Main Difference |
|---|---|---|
| E620 | Glutamic acid | Base compound |
| E621 | Monosodium glutamate | Contains sodium |
| E622 | Monopotassium glutamate | Contains potassium |
| E623 | Calcium glutamate | Contains calcium |
The main difference lies in the mineral attached to glutamic acid.
For people watching sodium intake, e622 may be preferable.
How to Identify E622 on Labels

Reading food labels doesn’t have to feel overwhelming.
Look for:
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E numbers
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Full chemical names
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Flavor enhancer descriptions
If you’re unsure, a quick search on your phone can clarify any code.
Frequently Asked Questions
1. Is E622 the same as MSG?
No, but they are closely related. Both are glutamate salts. The key difference is that MSG contains sodium, while E622 contains potassium.
2. Does E622 cause allergies?
True allergies are rare. Some people may report sensitivity, but scientific evidence does not confirm widespread allergic reactions.
3. Is E622 safe for children?
Regulatory authorities consider it safe in normal dietary amounts. Balanced diets remain essential for children’s health.
4. Can E622 raise blood pressure?
Unlike MSG, E622 contains potassium instead of sodium. Potassium does not typically raise blood pressure and may even help balance sodium levels.
5. Is E622 natural or artificial?
It is derived through fermentation, which mimics natural processes. However, it is still classified as a food additive.
6. Should I avoid foods with E622?
Not necessarily. If you maintain a varied diet and consume processed foods in moderation, there is usually no reason for concern.
Conclusion
Understanding e622 doesn’t require a chemistry degree. It is a flavor enhancer derived from glutamic acid and potassium. Used widely in processed foods, it boosts savory taste without significantly increasing sodium levels.
Scientific evaluations support its safety when consumed responsibly. Like many food additives, it plays a supporting role in modern food production.
At the end of the day, knowledge empowers better choices. When you read labels with confidence, you take control of your health—one ingredient at a time.