Potassium is an essential nutrient used to maintain fluid and electrolyte balance in the body. A deficiency in potassium causes fatigue, irritability, and hypertension (increased blood pressure). Overdose of potassium from natural sources is nearly impossible, however, it is possible to consume too much potassium via potassium salts which can lead to nausea, vomiting, and even cardiac arrest. Potassium from natural food sources, like the ones listed below, are considered safe and healthy. The current daily value for potassium is a 3.5 grams