Elete Citrilyte Add-inElete Citrilyte Add In Economy Refill Pure Liquid Electrolyte Concentrate Contains 4 Essential Electrolytes & Zinc Slight Lemon Flavor 18.6 Oz

I use this to refill my pocket bottle. It might be the cheapest sport drink out there. It is also one of the best, but you might want to mix it with watered fruit juice or a little protein powder for long rides.

Elete has been my favorite sport drink manufacturer for many years of cycling. It is one of the few that contains magnesium and it is in a form doesn't cause diarrhea (looking at you, Skratch). No sugar, and the refill bottles are super cheap. I don't know why this stuff isn't more popular.

That little bit of citrus helps getting to drink more water when needed.

I start to take it every day and the cramps stopped!

The men in our family struggle with terrible leg cramps due in part to hereditary sensory neuropathy. These drops help so much, especially when awaken at night. They help quickly and the guys are able to get back to sleep.