23. Salt
Water wasn’t the only thing your body was getting rid of every 20 minutes in those trips to the bathroom. You were also losing a lot of sodium; which is one of your body’s key electrolytes. A teaspoon of salt, that’s up next in our list of best foods for a hangover headache or really anything salty, will help replenish those lost electrolytes as well as enabling your body to absorb water at its normal rate.