E340 is the code that denotes citric acid.
Citric acid has a sour taste and is used as a preservative, acidity regulator, and antioxidant.
Citric acid itself contains no carbohydrates and does not significantly affect blood sugar levels.
Citric acid E340 is most commonly used in the production of beverages, confectionery, juices, canned goods, and other products.
In reasonable amounts, citric acid E340 can be safe for health.
