Why do electrolytes increase cellular hydration levels better than water?

Question

Why is it that electrolytes are supposedly better at hydrating the body better than regular water?

In: Biology

Answer 1

Electrolytes create osmotic pressure that draws water inside the cells. Electrolytes are concentrated drinks, so if the concentration inside the cell is lower than the electrolyte, then water will flow inside the cell to make balance.

So, they are effective for rehydration mostly during illness or after heavy workout with more sweating.