People are often more dehydrated than they realize, and it causes all kinds of issues. One simple one is that they will interpret it as hunger responses and eat more instead of drink more.
And when they do drink—Americans, specifically—they often drink demineralized water rather than mineralized water or water with electrolytes. Better than nothing but often not hydrating enough, especially in the warmer months.
Yes, I learned the hunger response one a long time ago, makes a huge difference. I recently started adding electrolytes and it seems to help quite a bit.
If you have not already, you should try coconut water. Natural electrolytes and may be more cost effective depending on the electrolyte brand you use. Of course you can also make your own electrolyte mix.
We like to do mineral water (like Gerolsteiner) with a little juice. But a favorite in our home is switchel:
