Heh, potassium chloride (K+) is a natural electrolyte your body needs to function. It's what makes you muscles work dude, and it's literally what makes your heart beat. Sodium Potassium Pump. Physiology 101. Gtfo here with your pseudo science non sense. These minerals are added because Dasani is purified using reverse osmosis and this removes all the minerals our bodies need to be able to safely drink it in the quantities we need.