Is e345 vegan?

The additive E345 is the code for magnesium citrate, a magnesium salt of citric acid used as an acidity regulator, stabilizer, and nutrient source. It is produced through the chemical reaction of citric acid with basic magnesium compounds, such as magnesium carbonate, magnesium hydroxide, or magnesium oxide. The citric acid component is typically manufactured through the microbial fermentation of plant-derived carbohydrates using the mold Aspergillus niger, while the magnesium compounds are obtained from mined mineral deposits or natural brine. Food manufacturers commonly include it in dietary supplements, powdered drink mixes, and various processed foods.

This ingredient is classified as vegan because its synthesis relies entirely on mineral, microbial, and plant-derived raw materials. No animal-derived substances or byproducts are involved in the fermentation of the citric acid or in the chemical production of the mineral salt. Therefore, food items containing E345 are compatible with a vegan diet.