Originally Posted By: BruceZed
Drink both Beers, with Pure Water you Absorb 70%, with a Diuretic (Coffee, Beer etc.) its 50%

Water Balance Article Caffeinated Beverages like Alcohol are Diuretics but they do not cause Dehydration, they just don't allow us to absorb as much Water as Pure Water. Beer also has at least 10% Carbos, so you will loose a little more to digestion, but get back some calories in exchange.

So Drink BOTH BEERS!


Carbs like alcohol break down into energy and water, For example, eating most fruits give you a net gain in water after digestion. Fats are about a tie, proteins take water to digest.

There also can be a lot said for the slight mental lift a single beer might give you.
On the other hand alcohol's vasodilating properties may not be a good idea if suffering from heat or cold maladies. Cold fingers good, hypothermia bad.