Nuun ( www.nuun.com ) is a tablet that you drop into your water. It dissolves and puts a little flavor and some electrolytes in there. It's got sodium, potassium, vitamin C, riboflavin, calcuim and magnesium. The cola flavor has some caffeine.
It does not have huge amounts of any of these, so you don't have to worry about overdosing yourself. It also does not have any sugar or carbs, so you're not getting a lot of calories along with your electrolytes.
Personally I like it more off the bike than on. While I certainly use it on the bike, I've never been a cramper. I do however get headaches if I drink a lot of plain water, so I like to add Nuun to some of what I drink to avoid that.




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