Anything that can cause dehydration such as sweating, vomiting, diarrhea, alcohol and medications. Here is a quick list of ways our bodies can become deficient in electrolytes: - Being in ketosis.  - Medications such as diuretics, antibiotics, some antidepressants and steroids. Illnesses and conditions such as diabetes and kidney disease can lead to dehydration and the need for fluids. - Environmental conditions such as excess heat and sun exposure. - Physical activity, especially in hot weather and with endurance exercise. - Sunburn – sunburn draws fluid to the skin’s surface and away from other organ systems, which can lead to dehydration and electrolyte imbalance. - Age – as we age, our bodies become less effective at excreting and reabsorbing sodium.  Often, hormone levels can attribute to this.  As we age, the body tends to hold on to less water, making increased hydration more important.  Also, certain illnesses and medications can increase the risk of dehydration. - Caffeine – Caffeine is a diuretic, which causes our bodies to release more water.  This leads to a risk of depleting levels of electrolytes, like potassium.