Potassium Citrate

Potassium citrate is a potassium salt of citric acid, a compound naturally found in citrus fruits and other produce. It is typically produced by fermenting carbohydrates to create citric acid, which is then neutralized with a potassium source. This process yields a white, crystalline powder.

Manufacturers add potassium citrate primarily as an acidity regulator, helping to control the tartness and pH of foods. It also functions as a chelating agent, a stabilizer, and a buffering agent. It is commonly found in beverages, dairy products, processed foods, and nutritional supplements.

In the United States, potassium citrate is Generally Recognized As Safe (GRAS) by the FDA for use in food. At typical intake levels, it is considered safe, though very high doses can sometimes cause mild stomach upset or a laxative effect. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) has evaluated potassium citrate and did not set a numeric acceptable daily intake (ADI not specified), considering it safe at levels typically used in food. The European Food Safety Authority (EFSA) has also assessed its safety and found no concerns.