Potassium Fumarate (E366)

Purpose and Function

Potassium Fumarate (E366) is used in the food industry primarily as an acidity regulator and flavor enhancer. It helps to control the pH of food products and enhances the overall flavor profile. Common applications include:

• Beverages: Used to regulate acidity in soft drinks and fruit juices.
• Processed foods: Maintains flavor and stability in various food products, including sauces and dressings.
• Confectionery: Enhances taste and improves texture in candies and other sweets.
• Meat products: Sometimes added to processed meats to improve flavor and preserve quality.
• Nutritional supplements: Often found in dietary supplements to provide a potassium source.

Potassium Fumarate (E366) is derived from fumaric acid, which occurs naturally in various plants and has a slightly sour taste.

Potential Risks and Side Effects

E366 is generally considered safe for consumption when used within regulated limits. Some considerations include:

• High potassium intake: Individuals with kidney issues or those on potassium-restricted diets should be cautious, as excessive potassium intake can lead to hyperkalemia (high blood potassium levels).
• Digestive effects: In large amounts, potassium fumarate may cause mild digestive discomfort, such as nausea or diarrhea, though this is rare at typical usage levels.
• Regulatory approval: Potassium Fumarate (E366) is approved for use in many countries, including the European Union and the United States, where it is considered safe for food use.

Overall, Potassium Fumarate (E366) is regarded as a safe food additive with functional benefits in flavor enhancement and acidity regulation.