Many associate electrolyte imbalances with heavy sweating, exercising during extreme heat or having the flu. However, did you know that over 90% of our us our deficient in potassium even without sweating or being sick? Potassium and sodium are the two big ‘electrolyte’ hitters. Deficiency in potassium can cause problems with maintaining hydration and glucose metabolism. Excessive sodium losses have been associated with fatigue and even kidney injuries.