title_body: Beer containing electrolytes
upvoted_answer: Electrolytes are just dissolved salts, where the ions can help transmit an electrical charge through the liquid.  So adding some table salt to your beer would be a way to add electrolytes.
  
  That said, drinking alcohol will dehydrate you, so added electrolytes might not actually help.  If you are feeling thirsty after your run, it would be best to drink water (with or without added elecrolytes) rather than replacing water with beer.  Save the beer until after you've rehydrated.