+1 for nuun. nuun plus is good for carbs and electrolytes.

For homemade…1/2 liter ginger water to 1 liter water….juice of three lemons or limes….½+ tsp of sea salt….stevia to taste if wanted….it's also good for recovery and with homemade energy bars works for me.

ginger water….cut medium ginger root into coins and place into a large pot. Add 1 liter of water. boil, simmer for 15 minutes, shut off heat let steep until it cools.