The obvious, natural choice. However, during hard work or exercise, sodium, as well as other minerals are lost through sweat and water will not replace those. In addition, drinking water will trigger urination, which will further dehydrate the body. Drink too much water and there is a risk hyponatremia, an abnormally low level of sodium in the blood. Although a small risk, it can cause seizures, coma and even death.
To help the body hold on to the water and avoid the risk of sodium loss, adding a pinch of salt is recommended (about a teaspoon per gallon). At that level, it will be tasteless.
Though not in the mainstream as much
as sports drinks, coconut water as a fluid replacement has been
The United Nations Food and Agriculture Organization (FAO) has
attested to its benefits and has been granted a patent for it.
Apart from the nutritional benefits of coconut water, here is an additional, and very interesting fact from the FAO.
a natural isotonic beverage, with the same level of electrolytic
balance as we have in our blood. It's the fluid of life, so to
speak." In fact, during the Pacific War of 1941-45, both sides
in the conflict regularly used coconut water - siphoned directly
from the nut - to give emergency plasma transfusions to wounded