Look for this... lot of grocery stores have it. Great for hydration loading or recovery. I keep packets in the truck as well.
Liquid I.V. Hydration Multiplier - Lemon Lime - Powder Packets | Electrolyte Drink Mix | Easy Open Single-Serving | Non-GMO | 16 Stick
https://www.amazon.com/dp/B01IT9NLHW?tag=fabo03-20