Potassium

Potassium is an essential mineral naturally present in many foods, such as fruits, vegetables, and dairy products. It is also available as a dietary supplement and can be added to foods in various forms.

In packaged foods, potassium is often added as a nutrient to fortify products or as a salt substitute, typically in the form of potassium chloride, to reduce sodium content. It can also function as a stabilizer or acidity regulator in certain food applications.

Potassium is an essential nutrient vital for maintaining fluid balance, nerve signals, and muscle contractions in the body. The FDA recognizes potassium as an essential nutrient, and certain potassium compounds, like potassium chloride, are generally recognized as safe (GRAS) for use in food. JECFA has evaluated potassium salts and established an acceptable daily intake for some forms. The US National Academies provides recommended daily allowances for potassium, noting that adequate intake is important for health. While dietary intake is generally safe, excessive intake of potassium from supplements or certain medical conditions can be harmful, particularly for individuals with impaired kidney function.