1. Maintain normal substance and energy metabolism, and participate in normal sugar and protein metabolism;

2. Maintain normal osmotic pressure in cells.

3. Maintain the stress response of nerves and muscles, as well as normal electrophysiological stability, and maintain the normal function of cardiomyocytes;

4. Maintain normal acid-base balance inside and outside the cells and electrolyte balance.

5. Help lower blood pressure. Potassium is one of the essential cations for the human body. Normal human blood potassium levels are between 3.5mmol/L and 5.5mmol/L, and it mainly exists in cells.