marathon recovery drink? Beer. Lots of it. A whole variety, but mostly leaning towards the rich and dark kinds (pictured here is a pint of Samuel Smith's Oatmeal Stout) though I did not hesitate to grab my complimentary MGD at the finish line. Mostly because I would never actually pay money to drink MGD.
Maybe it's in response to the pre-marathon regimen I was on: I had almost eliminated alcohol (as well as most sugary refined foods) from my diet. So maybe this is just me 'catching up', binge style.
But I have heard that beer is actually a better 'recovery' drink than water after vigorous exercise. So... yes. Drinking beer. As part of a carefully calculated recovery program. :P
(btw... I have signed up to do another marathon, at the end of this year. MORE BEER!!! :D)