Electrolytes and minerals serve the vital function of regulating hydration while supporting proper nerve conductivity. During keto-adaptation, an excess of minerals are excreted through the urine due to HPA axis dysregulation.
This is because in addition to cortisol, the HPA axis is also responsible for regulating hydration levels through the retention and excretion of minerals. In a sense, HPA axis dysregulation can also lead to hydration dysregulation. Likewise, there are common keto side effects that occur that manifest from these imbalances.
The most obvious sign that your electrolyte/mineral balance is being affected is an increase in urination. On a low-carb diet, insulin levels drop which promotes the secretion of sodium in the urine. Sodium pulls more water into the urinary system which then is excreted as well.
Additionally, as your body burns through glycogen stores in the liver and muscles, excess water is released into the urinary system.
While getting rid of this extra water is helpful in releasing toxins from the body, you want to make sure you are taking in additional fluids, electrolytes, and minerals to avoid other related side effects.