Nuun tablets are a good source of electrolytes. I like the Lemon+Lime and Orange Ginger favors. Here's a link to a post that I wrote about them:
Boston Marathon Finisher
McDonalds french fries are a great source of sodium.
JUST KIDDING. Nuun tablets are good. You can get them at running stores, REI or the internet.
"Victory through attrition!"
Charleston Half-Marathon 1/15/2011 -- 1:52:03
The Scream! Half-Marathon 7/16/2011 -- 1:56:00
ACTIVE is the leader in online event registrations from 5k running races and marathons to softball leagues and local events. ACTIVE also makes it easy to learn and prepare for all the things you love to do with expert resources, training plans and fitness calculators.