Mainly found in fruits and vegetables such as spinach, broccoli, tomatoes, citrus fruits, bananas, apples, avocados and raisins.

Potassium (symbol K) is an essential element and is found in all tissues in the body as an electrolyte. The body needs electrolytes to regulate nerve and muscle function and to maintain its water and acid-base balance. Potassium levels are regulated in the kidneys.

Potassium is found predominantly within (muscle) cells. It is required for the correct functioning of cells (tissues and organs), nerves, muscles and the heart.