Magnesium diglutamate
Score impact
-0.10
points/product
Description
E625, known as magnesium diglutamate, is a food additive classified as a flavor enhancer. It is the magnesium salt of glutamic acid, a non-essential amino acid naturally present in many foods such as tomatoes, cheeses, and mushrooms. Industrially, it is obtained by bacterial fermentation of molasses or starch, followed by neutralization with magnesium hydroxide and crystallization.
It is a white crystalline powder, odorless, with a characteristic umami taste, highly soluble in water, and stable under normal processing conditions. Its main function is to enhance the flavor of foods, boosting salty and meaty tastes, similar to monosodium glutamate (E621).
It was approved as an additive in the European Union after evaluations by EFSA (European Food Safety Authority) and WHO (World Health Organization) through the Joint FAO/WHO Expert Committee on Food Additives (JECFA). EFSA established an Acceptable Daily Intake (ADI) of 30 mg/kg body weight per day for glutamic acid and its salts, including E625, based on chronic and reproductive toxicity studies. WHO/JECFA set a similar ADI of 30 mg/kg/day. Globally, it is considered safe in the amounts used in foods, with no significant adverse effects documented in humans within the established limits.
On labeling, it must appear as 'magnesium diglutamate' or 'E625', and its consumption is safe for the general population, including children and pregnant women, as long as the ADI is not exceeded. However, some individuals sensitive to glutamate may experience mild symptoms such as headache or nausea if consumed in excess, although this is not specifically documented for E625.
In summary, E625 is a safe and effective flavor enhancer, widely used in the European food industry.
E625 is mainly used as a flavor enhancer in a wide variety of processed foods. According to EC Regulation 1333/2008, it is authorized in the EU in categories such as soups and broths, sauces, seasonings and dressings, processed meat products, savory snacks, prepared dishes, and cereal-based foods.
Examples of products in the Spanish market where it can be found include packet soups (such as Gallina Blanca), bagged potato chips (Maturano, Lays), tomato sauces (Orlando, Hida), concentrated broths (Avecrem), and some sausages. Maximum limits vary by category: for example, in soups and broths up to 10 g/kg expressed as glutamic acid is allowed, while in savory snacks the limit is 5 g/kg. In comparison with the US FDA, E625 is not directly regulated as an additive, but monosodium glutamate (E621) is and is considered GRAS (Generally Recognized as Safe). In Japan, the use of glutamates is very common, although E625 is not as frequent as E621.
The ADI established by the EU and WHO ensures that its consumption in usual amounts does not pose a health risk.
Documented side effects of E625 are scarce and not specific to this particular salt. EFSA and WHO/JECFA have evaluated glutamic acid and its salts, concluding that they do not present relevant toxicity at authorized doses. No carcinogenic, genotoxic, or teratogenic effects have been observed in animal studies.
In humans, some individuals sensitive to glutamate (known as 'Chinese restaurant syndrome') may experience symptoms such as headache, sweating, nausea, or palpitations after consuming large amounts of monosodium glutamate, but there is no solid evidence that magnesium diglutamate causes these effects. The magnesium in E625 could have a laxative effect at very high doses, but the amounts used in foods are negligible to cause such an effect.
No relevant drug interactions have been described. Sensitive populations such as people with chronic kidney disease should monitor their magnesium intake, but the contribution from E625 is minimal.
In conclusion, EFSA and WHO consider E625 safe for the general population, with no significant adverse effects under normal conditions of use.
- Magnesium glutamate
- Magnesium diglutamate
- INS 625
- L-Glutamic acid, magnesium salt (2:1)
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