Chloride is an essential electrolyte that works closely with other electrolytes like sodium and potassium to maintain the body's fluid balance, blood volume, and proper pH (acid-base balance). It is the most abundant anion (negatively charged ion) in the extracellular fluid, meaning the fluid outside of cells. Chloride plays a crucial role in nerve impulse transmission, muscle function, and digestion, being a component of stomach acid. Its levels are primarily regulated by the kidneys.
Chloride
Regulates acid–base balance.