Potassium is very important when it comes to hydration. Our cells pump out sodium and take in potassium to maintain water balance. When water enters our cells it brings in important “water-soluble” nutrients like vitamins (Bs, C etc) as well as plant nutrients (antioxidants). When we consume foods/drinks with in potassium the movement of water will follow the high absorption of potassium into the cell, keeping our cells hydrated.
A pinch of iodized salt is not bad to consume. Salt is important for keeping water distributed properly in our body, but too much can counteract with potassium, preventing water from absorbing into our cells.
Importantly, most people over-consume sodium in their daily diet by as much as three times the recommended amount, so we make Ultima with slightly lower sodium levels because of this reason.