If you become severely dehydrated because of illness, there are solutions that are absorbed faster than just water.
The following oral rehydration solution recipes were designed by the World Health Organization (WHO) to be convenient and inexpensive to make, while maximizing the rate of absorption.
This recipe is meant to treat severe rehydration. It is not ideal for regular hydration maintainence or athletic performance.
This is the WHO's main recipe, but it requires ingredients that, while available and inexpensive, are not normally found in households.
This recipe is not as optimal as the WHO ORS recipe, but it can be composed of ingredients commonly found in households.