Potassium, New RDA* 2000 mg
One of the most important minerals, is essential for the very life of every cell. It is also among the most generously and widely distributed of all the tissue minerals. Is found principally in the intracellular fluid. A small amount of potassium in the extracellular fluid is necessary for normal muscular activity.
Potassium is present in all animal and plant tissues. Major dietary sources include milk (1.4-1.5 mg/kg), fruit and vegetables (0.8-4.4 mg/kg), fish (1.9-3.5 mg/kg), shellfish (0.3 to 3.9 mg/kg), beef (2-3.5 mg/kg), chicken and turkey (3 mg/kg); liver is also a rich source of potassium (2.5 to 4.2 mg/kg).
Potassium is a bluish-white metallic element. It is highly reactive and never found free in nature. It plays an important role as a catalyst in energy production and in the synthesis of glycogen and protein. Liberal use of alcohol, coffee, sugar, and diuretics can lead to depletion of potassium.
*Sourced from EFSA WEBSITE