Magnesium Phosphates (E343)
Type of additive (Glossary) | Acidity Regulators Anti-caking Agents Emulsifiers Stabilizers Thickeners |
E Number | E343 |
Chemical Formula | Monomagnesium phosphate (Mg(H2PO4)2).xH2O Dimagnesium phosphate (MgHPO4).xH2O Trimagnesium phosphate (Mg3(PO4)2).xH2O |

Purpose and Function
Magnesium Phosphates (E343) are used in the food industry as acidity regulators, stabilizers, leavening agents, and fortifying agents. They help control the pH of food products, improve texture, act as a leavening agent, and provide a source of dietary magnesium. Common applications include:
- Baked goods: Acts as a leavening agent in baking powders to help dough and batter rise.
- Fortified foods and beverages: Adds magnesium to foods like cereals, sports drinks, and dietary supplements.
- Dairy products: Stabilizes and maintains the texture in products like cream, yogurt, and cheese.
- Confectionery: Used to improve the texture and prevent crystallization in candies and sweets.
- Powdered products: Acts as an anti-caking agent in products such as powdered milk and seasoning mixes.
Magnesium Phosphates (E343) are derived from phosphoric acid and magnesium, providing both functional and nutritional benefits in food processing.
Potential Risks and Side Effects
agnesium Phosphates (E343) are generally considered safe for consumption when used within regulated limits. Some considerations include:
- High magnesium intake: Excessive consumption can lead to digestive discomfort, such as diarrhea or stomach cramps, especially in individuals with kidney problems.
- Phosphate overload: High phosphate intake from processed foods may affect bone health and kidney function over time.
- Regulatory approval: Magnesium Phosphates (E343) are approved for use in many countries, including the European Union and the United States, where they are considered safe and beneficial for use in food products.
Overall, Magnesium Phosphates (E343) are regarded as safe and effective food additives with multiple functional and nutritional advantages.