NOW Supplements Potassium Chloride Powder provides potassium, an important electrolyte mineral that helps conduct electrical impulses in the body.  Potassium's primary function is to regulate balance of water and minerals throughout the body, as it may be lost during activity or sweating during exercise.  NOW Supplements Potassium Chloride Powder supports healthy blood pressure in conjunction with sodium and a Potassium and sodium balance is important for cardiovascular, bone and neuromuscular health.