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milk is better than water for hydration too

There was a TV experiment where two groups of people did similar exercises and then rehydrated with similar quantities of either water or milk, and they compared the water loss (through urine measurement).

The group that drank milk lost less fluid afterwards, which would indicate that drinking milk means more fluid is retained, however it isn't that simple.

1) Milk contains calories, and so some fluid will be required to store the glycogen that is created from ingesting calories. So drinking milk might actually mean you're less hydrated than drinking plain water, despite weeing out less fluid subsequently.
2) It doesn't scale. If you need to drink 2l of water to fix your dehydration you're not going to stomach drinking 2l of milk.
3) Water is cheap and abundant.

A pint of milk (or similar) after exercise is good, but subsequent rehydration should be water or electrolyte drink.

milk is better than water for hydration too

I've was hearing this for a while from my non-vegan cycling friends so decided to do a little digging. It turns out that the person who published this study (who happens to work in the dairy industry) was somewhat disingenuous when it came to the results.
While it is true that Milk will hydrate the body faster than water alone, what the study actually concluded was that consuming ANY combination of carb/fat/protein at the same time as water would hydrate the human body more efficiently than the consumption of water alone.
So basically, an energy (protein / nut / whatever food) bar at the same time as water; as in, what we've been doing for years, is just as effective. No technical advantage to slurping down the moo-juice; unless you just like that kind of thing...