Electrolytes are neither produced nor consumed by the body. The kidneys are responsible for maintaining your body’s equilibrium of sodium, potassium, magnesium and phosphorus. To maintain this balance, any excess electrolytes are excreted in the urine. That’s why urinary excretion of solutes closely typically follows dietary intake.

How exactly does the kidney clean the blood and make urine?

The kidney contains many types of specialized cells. One functional unit of a kidney is called a nephron. Each kidney has around a million nephrons, and every nephron has 2 parts:

  • Glomerulus (filter)
  • Tubule
2-Step Process

Step 1     The glomerulus receives circulated blood and acts as a filter. Water, electrolytes and urea pass through but large proteins such as albumin are blocked.

Step 2     The tubule then reabsorbs the water and electrolytes your body needs. Excess material is eliminated and passes as urine. Healthy kidneys will adjust your elimination of water and electrolytes.